Evaluating polynomials

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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
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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.