plz tell ans of all 3 ques.
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f(-4)=16+20+k
k=-36
again
x^2-5x-36=0
x^2-9x+4x-36=0
x(x-9)+4(x-9)=0
(x-9)(x+4)=0
x=9,-4
is answer
k=-36
again
x^2-5x-36=0
x^2-9x+4x-36=0
x(x-9)+4(x-9)=0
(x-9)(x+4)=0
x=9,-4
is answer
Devasheesh:
it is a ans of which ques
14
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