Question

If zero of polynomial x^2+(a+1)x+3 is -2 then a equal to

Answer 1

Answer:

given zero of a polynomial is-2so put X=-2 in given polynomial we get:

-2^2+(a+1)(-2)+3=0

4-2a-2+3=0

5-2a=0

so a=5/2

Step-by-step explanation:

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