Question

If (x−3)is a factor of x^3+ax^2+bx+18 and a+b=−7find a and b

Answer 1

Answer:

what is that answer 20 that is the answer

Answer 2

Answer:

3 will satisfy the given equation.

By substituting the value of 3 in above eqn we get,

27+9a+3b+18=0

3a+b=-15

Given,

a+b=-7

2a=-8

a=-4

b=-3

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