Review of Rational Expressions

(a)   are numbers that x cannot be.

Simplifying rational expressions is just simplifying

• variables.

• fractions.

• proportions.

• numbers.

• GCF

• Trinomial

• (x-1)(x-1)

• (x+2)(x-1)

• (x-2)(x+1)

• x(x-1)

• Cannot be simplified.

When adding/subtracting rational expressions, your first step is to:

True or false. When multiplying rational expressions, you have to have a common denominator.

(a)