/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q. 85E In the following exercises, solv... [FREE SOLUTION] | 91影视

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Chapter 9: Q. 85E (page 885)

In the following exercises, solve by completing the square-

x2+5x=2

Short Answer

Expert verified

The solution is33-52,-33-52

Step by step solution

01

Step 1. Given information

The equation:x2+5x=2

02

Step 2. Calculation

Solving the equation,

x2+5x=2

鈬�x2+5x+12脳52=2+12脳52

鈬�x2+5x+254=2+254鈬�4x2+20x+254=8+254鈬�4x2+20x+25=33

鈬�4x2+10x+10x+25=33

鈬�2x(2x+5)+5(2x+5)=33

鈬�(2x+5)2=33

鈬�2x+5=卤33

localid="1645264846365" 鈬�x=卤33-52鈬�x=33-52,-33-52

The required value of xis,

33-52,-33-52

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