Evaluating polynomials

All in One Place

Everything you need for JC, LC, and college level maths and science classes.

Learn with Ease

We’ve mastered the national curriculum so that you can revise with confidence.

Instant Help

24/7 access to the best tips, walkthroughs, and practice exercises available.

0/5
?
Examples
Lessons
  1. Evaluating polynomials
    1. When 4x23 { 4x^2-3 } is evaluated for x=5, {x=5,} what is the result?
    2. Find the value of "x43x3 {-x^4-3x^3} " when x=3 {x=-3}
  2. Find the value of the following polynomials, given a=2a = 2 and b=5b = 5.
    1. 12a33b\frac{1}{2}a^3-3b
    2. 3ab+5b210a 3ab+5b^2-10a
    3. a2b23aba^2b^2-3ab
Topic Notes
?
The unknowns in the polynomials actually represent numbers. What do we do when we know these numbers and plug them into the polynomials? Let's practice here in this section.