Question

If x= 3/ 2 is a zero of the polynomial 2x^2 + kx − 15, find the value of k.

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

given,

x=3\2

polynomial=2x

${2x}^{2} + kx + 15 = 0$

2(3/2}^2 + k(3/2)+15=0

2(9/2)+3k/2+15=0

18/2+3k/2+15=0

18/2+3k/2=15

3k=15-18/2×2(2 is cancel by 2)

3k=15-18

3k= -3

k= -3/3

k= -1

this is k value bro