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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 1.37. (page 30)

Evaluate $x = 3$ when $x^{2} a n d 4^{x}$

Short Answer

Expert verified

Part (a) 9.

Part (b) 64.

Step by step solution

01

Part (a) Step 1. Given information.

The given expression is $x = 3$

(a) $x = x^{2}$

(b) $x = 4^{x}$

02

Part (a) Step 2. Substitutex=3 for x2

$F o r x^{2} x = 3 = 3^{2} = 9$

03

Part (b) Step 1. Substitute x=3 for 4x

$F o r 4^{x} x = 3 = 4^{3} = 64$

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