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Natasha2012 [34]
3 years ago
7

How i can do this step by step If y= (x+3)^2, then (-2x-6)^2

Mathematics
1 answer:
zhenek [66]3 years ago
3 0
(-2x-6)^2=(-2(x+3))^2=(-2)^2\cdot(x+3)^2=4(x+3)^2=4y
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The length of &amp; rectangle is 3 times the
vagabundo [1.1K]

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The answer for this question is C, E and F .

Step-by-step explanation:

Given that the length is 3 times the width. So firstly, you have to find the expression of length :

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Next, the perimeter of rectangle is P = 2(length+width) so you have to substitute the expression into the formula :

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