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Elementary Algebra

Lynn Marecek, MaryAnne Anthony-Smith

$Math Studyset Vaia Explanations$ Math

2nd Edition · 1240 pages

ISBN: 9780998625713

Chapter 1: Q 971. (page 191)

In the following exercise, evaluate the following expression.
$x^{2} + 5 x - 8$ when $x = 6$

Short Answer

Expert verified

$58$

Step by step solution

01

Step 1. Given information

An expression is $x^{2} + 5 x - 8$ .

02

Step 2. Evaluate the expression.

At ,

$\begin{array}{rcl} x^{2} + 5 x - 8 & = & 6^{2} + 5 (6) - 8 \\ = & 36 + 30 - 8 \\ = & 58 \end{array}$

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