Question

ifif 3 is a zero of the polynomial x2+2x-a find the value of "a"and weather -3 and 5 are zeros of a given polynomial?​

Answer 1

Answer:

Given : 3 is one of zeroes of the polynomial 2x

2

+x+k which means x=3 will satisfy it.

2x

2

+x+k=0

2(3)

2

+3+k=0

18+3+k=0

k=−21

The value of k is −21.

Step-by-step explanation:

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