Polynomial question... (1 Viewer)

[Kostie100]

Was wondering if anyone could help me out with this:

Evaluate a, b and c if: P(x)=ax^3-bx^2+cx-8, has zeroes 2 and -1 and P(3)=28.

 

[Trebla]

Was wondering if anyone could help me out with this:

Evaluate a, b and c if: P(x)=ax^3-bx^2+cx-8, has zeroes 2 and -1 and P(3)=28.

Sub P(2) = 0, P(-1) = 0 and P(3) = 28. You should get three simultaneous equations to solve for a, b and c,

 

[Kostie100]

Thanks