Question

que.13 solve fast... urgent

Answer 1

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Answer 2

Given eqn
X sq -2x-15=0
Ie alpha + beta = -b/a
= 2
alpha.beta= c/a= -15

Now quad eqn of roots 2alpha and 2beta

Xsq-(2alpha+2beta)x+2alpha.2beta=0

Xsq - 2(2)x+4(-15)=0

Xsq -4x -60=0
ans

Hope it helps