If 1/2is a root of the equation x2+kx-(5/4)=0then the value of k is
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Answer:
k = 2
Step-by-step explanation:
p(x) = x^2+kx- 5/4 = 0
p(1/2) = (1/2)^2+k(1/2) -(5/4) = 0
= (1/4)-(5/4)+k(1/2) = 0
= (-4/4)+k(1/2) = 0
= (-1)+k(1/2) = 0
= k(1/2) = 1
= k = 1*2
=k=2
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