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The square of x is equal to 4 times the square of y. If x is 1 more than twice y, what is the value of x?
i) 4
ii)  1/2
iii)  1/4
iv) 1/4
v) 1/2
 one year ago
 one year ago
The square of x is equal to 4 times the square of y. If x is 1 more than twice y, what is the value of x? i) 4 ii)  1/2 iii)  1/4 iv) 1/4 v) 1/2
 one year ago
 one year ago

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AzteckBest ResponseYou've already chosen the best response.0
\[x^2=4y^2\] \[x=2y+1\] Use substitution.
 one year ago

AravindGBest ResponseYou've already chosen the best response.0
@amishra try the method suggested above^
 one year ago

amishraBest ResponseYou've already chosen the best response.0
I tried, but I am not getting the correct answer :
 one year ago

AzteckBest ResponseYou've already chosen the best response.0
Okay...Everytime you see the letter x, substitute this: (2y+1)
 one year ago

AzteckBest ResponseYou've already chosen the best response.0
\[x^2=4y^2\] \[(2y+1)^2=4y^2\]
 one year ago

AzteckBest ResponseYou've already chosen the best response.0
Now you can do it using your knowledge of expanding.
 one year ago

abhrag321Best ResponseYou've already chosen the best response.0
from the eq. x=2y+1 we get, y=(x1)/2 now x^2=4y^2 =>x^2=4[(x1)/2]^2=4[(x1)^2]/4=(x1)^2=x^22x+1 =>2x1=0 =>x=1/2
 one year ago

AzteckBest ResponseYou've already chosen the best response.0
@abhrag321 Good job going against the Code of Contact of sharing answers and not actually helping them understand the question.
 one year ago

amishraBest ResponseYou've already chosen the best response.0
Its okay. I finally understood my mistake. I was searching for y instead of x :P THANK YOU SO MUCH FOR YOUR HELP!!!!!!!!!!
 one year ago

abhrag321Best ResponseYou've already chosen the best response.0
I have read the Code of Conduct. There is the line, "Don't provide someone with just the answer  explain the process, and help guide them through understanding the problem." So please explain the violation process.
 one year ago
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