Evaluating polynomials

Evaluating polynomials

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.
Basic concepts: Evaluating algebraic expressions,
Related concepts: Function notation, Function notation (Advanced), Operations with functions,

Lessons

  • 1.
    Evaluating polynomials
    a)
    When 4x2−3 { 4x^2-3 } is evaluated for x=5, {x=5,} what is the result?

    b)
    Find the value of "−x4−3x3 {-x^4-3x^3} " when x=−3 {x=-3}

Do better in math today
Get Started Now
27.
Factoring Polynomial Expressions
27.1
Common factors of polynomials
27.2
Factoring polynomials by grouping
27.3
Solving polynomials with the unknown "b" from x2+bx+cx^2 + bx + c
27.4
Solving polynomials with the unknown "c" from x2+bx+cx^2 + bx + c
27.5
Factoring polynomials: x2+bx+cx^2 + bx + c
27.6
Applications of polynomials: x2+bx+cx^2 + bx + c
27.7
Solving polynomials with the unknown "b" from ax2+bx+cax^2 + bx + c
27.8
Factoring polynomials: ax2+bx+cax^2 + bx + c
27.9
Factoring perfect square trinomials: (a+b)2=a2+2ab+b2(a + b)^2 = a^2 + 2ab + b^2 or (a−b)2=a2−2ab+b2(a - b)^2 = a^2 - 2ab + b^2
27.10
Find the difference of squares: (a−b)(a+b)=(a2−b2)(a - b)(a + b) = (a^2 - b^2)
27.11
Evaluating polynomials
27.12
Using algebra tiles to solve polynomials
27.13
Solving polynomial equations
27.14
Word problems of polynomials
ACCUPLACER Test Prep
Don't just watch, practice makes perfect.