Question

If x = 2 and x = 0 are roots of the polyNOmial f(x) = 2x ^ 3; 5x^ 2 +ax+b, Then find the value of a and b respectively.​

Answer 1

Answer:

=2(2)

3

−5(2)

2

+a(2)+b=0

⇒16−20+2a+b=0⇒2a+b=4

⇒f(0)=2(0)

3

−5(0)

2

+a(0)+b=0

⇒b=0⇒2a=4⇒a=2,b=0

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