Factor: 12x2 - 17x 6
Practice factoring a trinomial with a negative middle term: 12x2 - 17x 6.
Rational Expressions that Equal - 1
Rational expressions that equal -1 are recognizable: the terms in the numerator are identical to the terms in the denominator except for their signs, which are opposite.
Factor: ax - x - 5a 5
Practice with factoring involving minus signs: ax - x - 5a 5.
Subtracting Like Terms
Subtracting like terms demonstrated and applied to a practical problem.
Simplifying Complex Expressions
Applying the rules for exponents to simplifying more complex expressions.
Simplifying An Expression Using Many Rules
Practice applying the rules for exponents to simplifying complex expressions.
Multiplying Signed Numbers: Multiplying Positive Numbers by Negative Numbers
This clip explains that, to multiply a positive number and a negative number, "
multiply their absolute values and use the negative sign."
Examples of Simplifying Expressions Written in Parentheses
Using more than one of the rules for exponents to simplify expressions written with parentheses.
Factor by Grouping
Summary of the procedure for factoring by grouping.
Factor: 3c2 - 13cd 14d2
Practice factoring a trinomial with two different variables: 3c2 - 13cd 14d2.