Math, asked by psbhavanasurendra40, 8 months ago

6. If(x+4)(x-4)=9 then the value of x is
A)+/- 1/5
B) +/- 5
C( 1/5,1/5
D) 5,5

Answers

Answered by chinnuchiranthan5

1

Answer:

x=-1

Step-by-step explanation:

(x+4)(x+4)=9

(x+4)^2=9

x^2+16+8x=9

x^2+8x+7=0

splitting the middle term

x=-1 and -7

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