$V = 3 b + 2 b^{2}$ $V = 3b + 2b^2$ What is the value of V when b = –4?

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Answer 1 · 2016-10-29T20:35:04

$V = 3 b + 2 b^{2}$ $V = 3b + 2b^2$

So when $b = - 4$ $b=-4$ we have;

$V = 3 (- 4) + 2 {(- 4)}^{2}$ $V = 3(-4) + 2(-4)^2$
$:. V = -12 + 2(-4)(-4)$
$:. V = -12 + 2(16)$
$:. V = -12 + 32$
$:. V = 20$

V = 3b + 2b^2V=3b+2b2V = 3b + 2b^2 What is the value of V when b = –4?