8.3 Add and subtract Rational Expressions

To Add and Subtract Find Common Denominators Combine Like Terms Factor/Simplify

Add and Subtract with Like Denominators Example 1

Add and Subtract with Like Denominators Example 2

Add and Subtract with Like Denominators Example 3

Find the Least Common Multiple of Polynomials Example 4 Find the least common multiple for each pair. A. 4x2y3 and 6x4y5 B. x2 – 2x – 3 and x2 – x – 6

Find the Least common Multiple of Polynomials C. D. Factor each polynomial FIRST

Add and Subtract Example 5 (3x) (2)

Add and Subtract Example 6 (5) (2)

Example 8 Subtract

Add and Subtract Example 9 (x-7) (6)

Add and Subtract Example 10

Add and Subtract Example 11 x – 3 x2 + 3x – 4 + 2x x + 4

Add and Subtract Example 12 x x + 2 – 8 x2 – 4

Example 13 Subtract

Example 14 Subtract

Add and Subtract Example 7 (4x²) (3)

Example 15

Add Fractions (3) (5)