For what value of K, is 3 a zero of the polynomial 2x square + x+K ?
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If 3 is zero,
Therefore,
2X square + X + K =0
let x=3
and f(x)=2 X square + X + k =0
Therefore,
f(3)=2(3)^2+3+k=0
=2×9+3+k=0
=18+3+k=0
=21+k=0
=k=-21
for k=-21 , 3is the zero of polynomial 2x^2+x+k
HOPE IT HELPS YOU!!!!
Therefore,
2X square + X + K =0
let x=3
and f(x)=2 X square + X + k =0
Therefore,
f(3)=2(3)^2+3+k=0
=2×9+3+k=0
=18+3+k=0
=21+k=0
=k=-21
for k=-21 , 3is the zero of polynomial 2x^2+x+k
HOPE IT HELPS YOU!!!!
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