Answer
$\frac{5}{12}$
Work Step by Step
The given expression is
$=-\frac{b+2a}{ab}$
Substitute $4$ for $a$ and $-3$ for $b$.
$=-\frac{(-3)+2(4)}{(4)(-3)}$
Simplify.
$=-\frac{-3+8}{-12}$
$=-\frac{5}{-12}$
$=\frac{5}{12}$
Big Ideas Math - Algebra 1, A Common Core Curriculum
by Larson, Ron; Boswell, Laurie
Published by
Big Ideas Learning LLC
ISBN 10:
978-1-60840-838-2
ISBN 13:
978-1-60840-838-2
Chapter 8 - Graphing Quadratic Functions - 8.2 - Graphing f(x) = ax^2 + c - Exercises - Page 430: 45
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