Bell Ringer 2/9/15 1. Simplify 3x 6x 2. Multiply 1 X 2 2 3 3. Divide 2 ÷ 4 3 5 4. Add 1 + 2 2 3 5. Subtract 2 _ 4 3 5.

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Presentation transcript:

Bell Ringer 2/9/15 1. Simplify 3x 6x 2. Multiply 1 X Divide 2 ÷ Add Subtract 2 _ 4 3 5

Operations with Rational Expressions Monday 2/9/15 and Tuesday 2/10/15

Rational Expressions are Fractions with variables.

Excluded Values With fractions, you can not have a denominator of zero because you can not divide by zero. Anything that makes a denominator of a Rational Expression zero is an Excluded Value.

Simplify Apply the properties of exponents and factoring polynomials.

Multiply 1. Simplify before you multiply. 2. Multiply the numerators. 3. Multiply the denominators. 4. See if you can simplify again. 5. Check for excluded values.

Divide 1. Multiply by the reciprocal. 2. Check for excluded values.

Add 1. Get common denominators 2. Add the numerators 3. Simplify 4. Check for excluded values.

Subtract 1. Get common denominators 2. Add the opposite 3. Simplify 4. Check for excluded values.

Practice! 2/9/15 Classwork: Multiplying & Dividing Rational Expressions Odd Problems Homework: Multiplying & Dividing Rational Expressions Even Problems Also: Simplifying Rational Expressions Classwork assignment due 2/11/15

Bell Ringer 2/10/15 Explain, in paragraph form, how Rational Expressions are like fractions.

Practice! 2/10/15 Classwork: Adding & Subtracting Rational Expressions #1-20 Homework: Adding & Subtracting Rational Expressions #21-30