if x=1/2 is a zero of polynomial 2x^- +Kx-12 then find k
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Gn:x=1/2 =>x=-1/2
f(x)=2x²+kx-12
To find:k
Soln:2x²+kx-12=0
=>2(1/2)²+k(1/2)=12
=>2/4 + k/2 = 12
=>2/4 + 2k/4 = 12
=>2+2k = 48
=>2k=46
Hence,k=23.
Plz mark my answer as brainliest.
f(x)=2x²+kx-12
To find:k
Soln:2x²+kx-12=0
=>2(1/2)²+k(1/2)=12
=>2/4 + k/2 = 12
=>2/4 + 2k/4 = 12
=>2+2k = 48
=>2k=46
Hence,k=23.
Plz mark my answer as brainliest.
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