Pre-Calc 20 Rational Expressions and Equations :Answer the following questions with showing all your work.

Simplify and show NPV's, Show all your work. a ) By - 3x 6 81x2 - 36x + 4 - 4 x - 4 y 18 x - 4 ( x- 4 X 2 x - +10x XL - By - 9 2 . q y + 8 *2 +25 4 2 - 25 X + 2x y2 - 10 y + 9 4 2 - 1 5 - y 2. Divide and show NPV's. Show all your WORK. 2) 3x - 2 . 9x - 4 b 4-2 *3+3x+ 2x 3x2 + 8x+4 7 X 6 X - 2 2 3. Perform the indicated operation and simplify. Identify NAV's. show all your work . a 24 - 1 Y - 2 _ 1 - 8 ba Q - 30 2y by at 3 f) 2 x X 42 - 9 28 + 5 x + 3 2 x- 3 4. Solve and Identify al NRV's. Show YOUR WORK. a) x + 2 _ * + 3 b) 3m +9 - 3 m-1 3 x+ 2 X - 1 m- 3 m+ 3 ( ) x - 2 1 + X - 3 2 x+ 1 2 2 x