How to solve this equation?

[berblexer]

X^2 + (1.25X)^2 = 19^2

Any ideas, i didn't know where else to ask.

[haider]

you distribute the exponent of the parentheses: (meaning you square everything inside it)

X^2 + 1.25^2X^2 = 19^2

Add the similar terms (X^2 here):

(1.25 + 1)X^2 = 19^2 -----> 2.25X^2 = 19^2

divide both sides by 2.25:
X^2 = 19^2/2.25

Take the square root of both sides:
X = squareroot (19^2/2.25) = squareroot (361/2..25) = 12.67 OR 38/3

practice practice practice!!

good luck

[berblexer]

Thank you for taking the time solving it.

[DK II]

[Flexb]

you distribute the exponent of the parentheses: (meaning you square everything inside it)

X^2 + 1.25^2X^2 = 19^2

Add the similar terms (X^2 here):

(1.25 + 1)X^2 = 19^2 -----> 2.25X^2 = 19^2

divide both sides by 2.25:
X^2 = 19^2/2.25

Take the square root of both sides:
X = squareroot (19^2/2.25) = squareroot (361/2..25) = 12.67 OR 38/3

practice practice practice!!

good luck

 

[gcb]

you distribute the exponent of the parentheses: (meaning you square everything inside it)

X^2 + 1.25^2X^2 = 19^2

Add the similar terms (X^2 here):

(1.25 + 1)X^2 = 19^2 -----> 2.25X^2 = 19^2

divide both sides by 2.25:
X^2 = 19^2/2.25

Take the square root of both sides:
X = squareroot (19^2/2.25) = squareroot (361/2..25) = 12.67 OR 38/3

practice practice practice!!

good luck

1.25x1.25 = 1.5625

[haider]

geez, i made a mistake... cut me some slack. forgot to square the 1.25 even though i wrote it as such. woopsie. no algebra mistake though.

my apologies.

[haider]

Add the similar terms (X^2 here):

(1.25^2 + 1)X^2 = 19^2 -----> 2.25X^2 = 19^2
^^mistake was right here

[DK II]

geez, i made a mistake... cut me some slack. forgot to square the 1.25 even though i wrote it as such. woopsie. no algebra mistake though.

my apologies.

Holy shit man, can't you even do a simple equation properly??
 











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[benchmstr]

x=squareroot of...

[haider]

Holy shit man, can't you even do a simple equation properly??
 











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simple is relative  the guy is taking beginner to intermediatte algebra i suppose. If he practices he can learn and will indeed agree that it is simple 

[DK II]

simple is relative  the guy is taking beginner to intermediatte algebra i suppose. If he practices he can learn and will indeed agree that it is simple 

LOL, i know that it is simple for a lot of people, for me it's as if you write sth in a different language, i cannot read that shit at all.....

[Flexb]

LOL, i know that it is simple for a lot of people, for me it's as if you write sth in a different language, i cannot read that shit at all.....

Same. It may as well be Japanese to me.

[DK II]

Same. It may as well be Japanese to me.

THEN i could read it, lol. 

[Flexb]

THEN i could read it, lol. 

I'm Canadian and can't even read french. Thank god actually 

[haider]

LOL, i know that it is simple for a lot of people, for me it's as if you write sth in a different language, i cannot read that shit at all.....

interesting. I've always wondered what math looks like to non science/ non engineering people. I guessed it probably looks like a foreign language... guess im right

Same. It may as well be Japanese to me.

have you forgiven me yet?  

[Flexb]

interesting. I've always wondered what math looks like to non science/ non engineering people. I guessed it probably looks like a foreign language... guess im right
have you forgiven me yet?  

I'm still confused. Leave me alone 

[haider]

 

1.25x1.25 = 1.5625

sorry about my post proceeding the one above... I thought both you and flexb were on my case about the mistake.   

[DK II]

interesting. I've always wondered what math looks like to non science/ non engineering people. I guessed it probably looks like a foreign language... guess im right
have you forgiven me yet?  

Well at least to me, math and languages are basically the same.

Both follow certain rules and are a way to encode information, making it understandable to the person that can "read" the language.

I cannot read, speak nor write math, only maybe simple daily conversation like "hello", "how are you", "two beers please" and so on, lol.

[Flexb]

sorry about my post proceeding the one above... I thought both you and flexb were on my case about the mistake.   

hahaha no, I'm dumb and do not understand any of that  

[kiwiol]

X^2 + (1.25X)^2 = 19^2

Any ideas, i didn't know where else to ask.

If you don't know where else to ask other than here, then that equation may not be your biggest problem.

[DK II]

If you don't know where else to ask other than here, then that equation may not be your biggest problem.

LOL, that's true.

[haider]

If you don't know where else to ask other than here, then that equation may not be your biggest problem.

Well at least to me, math and languages are basically the same.

Both follow certain rules and are a way to encode information, making it understandable to the person that can "read" the language.

I cannot read, speak nor write math, only maybe simple daily conversation like "hello", "how are you", "two beers please" and so on, lol.

makes perfect sense.

hahaha no, I'm dumb and do not understand any of that  

aint that bright myself either lol. I happen to be an engineering student so i've done a lot of math over the years.

[outby43]

I need VB help.  2 dimensional array(i think).

if you have VB installed and want to take a look let me know.

[Tapeworm]

Approximately 11.8692 and -11.8692?


It's been a loooong time.