Science

Math

Humanities

... and beyond

Socratic Meta
Featured Answers

Topics

Question #9a020

1 Answer

Jul 12, 2016

$p (- 2) = 12$ $p(-2) = 12$

Explanation:

I am assuming that $p (x) = x^{3} + 7 x^{2} + 4 x$ $p(x) = x^3 + 7x^2 + 4x$ and you want to find $p (- 2)$ $p(-2)$ .

If this is the case, then plug in $- 2$ $-2$ for all variables $x$ $x$ .

$p (x) = x^{3} + 7 x^{2} + 4 x$ $p(x) = x^3+7x^2+4x$

$p (- 2) = {(- 2)}^{3} + 7 {(- 2)}^{2} + 4 (- 2)$ $p(-2)= (-2)^3 + 7(-2)^2 + 4(-2)$

$p (- 2) = - 8 + 28 - 8$ $p(-2) = -8 + 28 -8$

$p (- 2) = 20 - 8$ $p(-2) = 20 - 8$

$p (- 2) = 12$ $p(-2) = 12$

Related questions

See all questions in Multi-Step Inequalities

Impact of this question

1243 views around the world

You can reuse this answer
Creative Commons License