Question

What is a cubic polynomial function in standard form with zeros 1, –2, and 2?

Use synthetic division to find P(3) for P(x) = x^4 – 6x^3 – 4x^2 – 6x – 2.

Divide 3x^3 + 3x^2 + 2x – 2 by x + 3 using long division.

Divide using synthetic division.
–3x3 + 11x2 – x + 20 by (x – 4).

Answer 1

p(x) = (x-1)(x+2)(x-2) = x^3 - x^2 -4x + 4

P(3) = -137
See http://easycalculation.com/algebra/synthetic-division-calculator.php

visit calc101.com and click on the long division link

Answer 2

synthetic division p(x)x^3-5x^2+10