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Chapter 9: Q. 46 (page 869)

Solve quadratic equation64x2+144x+81=25 using square root property

Short Answer

Expert verified

The values ofxare-74and-12

Step by step solution

01

Step 1. Given information 

The quadratic equation64x2+144x+81=25

02

Step 2. Factor the perfect square trinomial  

鈬�8x+92=25

03

Step 3. Use square root property  

鈬�8x+9=卤5

鈬�8x=卤5-9

鈬�x=-74andx=-12

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Most popular questions from this chapter

The sun casts a shadow from a flag pole. The height of the flag pole is three times the length of its shadow. The distance between the end of the shadow and the top of the flag pole is 20 feet. Find the length of the shadow and the length of the flag pole. Round to the nearest tenth.

Solve :- x-6x+8=0

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Solve :-x4-6x2+8=0

In the following exercises, solve by using the Quadratic Formula.
2x2-x+1=0
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