Using Multiplication to Eliminate the 'x' Variable
Solving a system of equations in which the variable terms are not multiples of each other and have no common factors, using multiplication to eliminate the 'x' variable.
Using Multiplication to Eliminate the 'y' Variable
Solving a system of equations in which the variable terms are not multiples of each other and have no common factors, using multiplication to eliminate the 'y' variable.
Using Multiplication to Change Terms
How to use the multiplication property of equality to generate terms that are additive inverses so the elimination method can be employed to solve a system of equations.
Solve: x2 - 8x 16 = 0
Practice solving a quadratic equation: x2 8x 16 = 0. Because this equation has two identical binomial factors, it has a single solution called a double root.
Standard Quadratic Trinomial Form
The standard form for any quadratic trinomial is ax2 bx c.
Solving a Basic Algebraic Equation
The definition of an algebraic equation and how to solve it, using a practical example.
Some Problems are More Easily Solved Using One Variable
Although many problems can be solved with either one equation or a system of equations, one way will sometimes be easier than the other. A word problem involving finding the price per chair given the number of chairs, the total price, and the amount...
Word Problems Simplified by Using Algebra
How to translate word problems into algebraic equations.
Writing Compound Inequalities
Step-by-step demonstration of combining inequalities.
Writing Algebraic Expressions
Introducing different ways to write algebraic expressions.