Which is the best strategy to use to solve this problem?

Mathematics

2 answers:

nlexa [21]3 years ago

6 0

C. you need to find the area and perimeter to find the outside

kvasek [131]3 years ago

5 0

C. Use objects to model the problem

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Step-by-step explanation:

$f(x) =x^2 -2x\:\: and \:\: g(x) = 6x + 4\\(f+g)(x) = f(x) + g(x) \\(f+g)(x) = x^2 -2x+ 6x + 4\\(f+g)(x) = x^2+4x + 4\\(f+g)(x) = (x+2)^2\\ 0 = (x+2)^2...[\because (f+g)(x) =0]\\0 = x+2\\\therefore x = -2$

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