Question

x²-2x-8 sunyak and gunako ke bech styta ki jach

Answer 1

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x²-2x-8

x²-4x+2x-8

x(x-4)+2(x-4)

(x-4)(x+2)


Sunyak...


(x-4)=0

x=4


Athwa Sunyak..

x+2=0

x=-2




Thanks!!

Answer 2

x^2-(4-2)x-8=0
x^2-4x+2x-8=0
x(x-4)+2(x-4)=0
(x+2) (x-4)
so
x=-2
x=4