Factor: 12x2 - 17x 6
Practice factoring a trinomial with a negative middle term: 12x2 - 17x 6.
Solving Systems of Equations Using the Elimination Method by Subtraction
Another way to eliminate terms that are additive inverses is by subtraction.
Practical Problem: Boat Speed and River Currents
A word problem involving rate, time, and distance is solved step-by-step using the elimination method.
Factor: 5c2 3c - 20cd - 12d
Practice factoring: 5c2 3c - 20cd - 12d.
Factor: ax - x - 5a 5
Practice with factoring involving minus signs: ax - x - 5a 5.
Practical Problem: Subtracting Boxes in a Warehouse
A practical problem solved using subtraction in an algebraic expression.
Polynomials, Monomials, Binomials, Trinomials
Three types of polynomials are defined: monomials, binomials, and trinomials.
Subtracting Like Terms
Subtracting like terms demonstrated and applied to a practical problem.
FOIL Method for Multiplying Binomials
Using the FOIL method to multiply two binomials. FOIL suggests the order, by position, in which terms should be multiplied: first, outer, inner, last.
Explanation of Like Terms
The definition of like terms in an algebraic expression. Identifying terms that are and are not like terms.