Question

if x = 3 and x = 0 are the zero of the polynomial 2x^3 - 8 x^2 + a x + b then find the value of a and b​

Answer 1

Answer:

Step-by-step explanation:

f(x)=2x^3 - 8 x^2 + a x + b

f(3)=2×3^3 - 8 ×3^2 + a ×3 + b

=54-72+3a+b

=3a+b-18

f(0)=2×0^3 - 8 ×0^2 + a ×0 + b

=b

b=0 putting value of b in eq 1

3a+0-18=0

3a=18

a=18/3

a=6 and b=0

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