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anonymous
 one year ago
If y = (x + 3)2, then (2x  6)2 must equal which of the following?
A.
4y2
B.
2y2
C. 4y
D. 4y
wHAT FORMULA DO I USE TO GET THE ANSWER?
anonymous
 one year ago
If y = (x + 3)2, then (2x  6)2 must equal which of the following? A. 4y2 B. 2y2 C. 4y D. 4y wHAT FORMULA DO I USE TO GET THE ANSWER?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Does anyone know what formula I use to get the answer?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You use math... \[y = (x+3)^2\] \[\sqrt(y) = x+3\] \[(2x6)^2 = (2\sqrt(y))^2\] =4y (...gotta learn how to write latex again)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@nphuongsun93 Thank can you walk me through the steps so I know how to do it with other problems?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok. \[y = (x+3)^2\]\[\sqrt(y) = x+3\] Understand this so far?

jdoe0001
 one year ago
Best ResponseYou've already chosen the best response.0hint: \( y={\color{brown}{ (x+3)^2 }}\qquad (2x6)^2\to \begin{cases} [2(x+3)]^2\impliedby \textit{common factor}\\ (2)^2(x+3)^2\impliedby expanded\\ +4{\color{brown}{ (x+3)^2 }} \end{cases}\)
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