Asked by jiya
if x= 3/2 is a zero of the polynomial2x^2 + kx-12 then find the value of k
Answers
Answered by
oobleck
the product of the roots is c/a = -12/2 = -6
so the other root is -4
the polynomial is thus f(x) = (2x-3)(x+4)
expand that out to find k.
so the other root is -4
the polynomial is thus f(x) = (2x-3)(x+4)
expand that out to find k.
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