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Chapter 9: Q. 52 (page 870)

Solve quadratic equation 4z2+4z+1=49using square root property

Short Answer

Expert verified

The values ofzare-4and3

Step by step solution

01

Step 1. Given information 

The quadratic equation4z2+4z+1=49

02

Step 2. Factor the perfect square trinomial 

鈬�2z+12=49

03

Step 3. Use square root property  

鈬�2z+1=卤7

鈬�2z=-1卤7

鈬�z=-4 andz=3

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