Question

2t x = 3/2 is a zero of polynomial p (x) = 2 X2 + kx -12 them find k​.​

Answer 1

Answer:

since,3)2 is a zero of polynomial p(x)

P(3/2)=0

2(3/2)²+k×3/2-12=0

2×9/4+3k/2-12=0

9/2+3k/2-12=0

9+3k-24/2=0

3k-15=0

3k=15

k=15/3

k=5