Question

(2x - 7) (2x + 7) =- 13​

Answer 1

Step-by-step explanation:

(2x-7)(2x+7) = -3

2x^2+14x-14x-49 = -3

2x^2-49 = -3

2x^2 = -3+49

x^2 = 46/2

x^2 = 23

x=√23

Answer 2

Answer:

3

Step-by-step explanation:

(2x-7) (2x+7)=-13

2x(2x+7)-7(2x+7)=-13

4xsq.+14x-14x-49=-13

4xsq.-49=-13

4xsq.= 36

xsq. = 36/4

xsq. = 9

x= √9

x=3Ans.

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