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Chapter 5: Q. 2 (page 282)

Answers are given at the end of these exercises. If you get a wrong answer, read the pages listed in red.
Solve:
$x^{2} + 3 x = 4$ x

Short Answer

Expert verified

By solving $x^{2} + 3 x = 4$ , the value of $x$ is $x = - 4, 1$

Step by step solution

01

Step 1. Given

An equation $x^{2} + 3 x = 4$

To solve the equation

02

Step 2. Separate the b term

$x^{2} + 3 x = 4 x^{2} + 3 x - 4 = 0 x^{2} + 4 x - x + 4 = 0 (x + 4) (x - 1) = 0$

03

Step 3. Use Zero-Property

So, either $x + 4 = 0 x = - 4$

Or $x - 1 = 0 x = 1$

The value of $x = - 4, 1$

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Most popular questions from this chapter

solve equation. Verify your results using a graphing utility.

$8^{- x + 14} = 16^{x}$

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