Question

If 2 and 0 are the zeros of the polynomial f(x) =2x³-5x²+ab+b then find the values of a and b.​

Answer 1

Step-by-step explanation:

If

f(2)=

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