1. Evaluate each expression without using a calculator. (a) (-3)* (b) -34 (c) 3-4 523 (e) 521 (f) 16-1/4 2. Simplify each expression. Write your answer without negative exponents. (a) 200-32 (b) (3ab) (4ab) -2 (c) 3x/2y3 xy-1/2 3. Expand and simplfy. (d) (a) 3(x+6) + 4(2x - 5) (c) (a + b)(a - b) (e) (x + 2) 4. Factor each expression. (a) 4x - 25 (c) x 3x - 4x + 12 (e) 3x3/2-9x1/2 + 6x-1/2 -2 5. Simplify the rational expression. x + 3x + 2 x-x-2 (a) x+1 x + 2 (b) (x + 3)(4x - 5) (d) (2x + 3) (b) 2x + 5x - 12 (d) x + 27x (f) x'y - 4xy (b) (d) 2x-x-1 x-9 X X 1 1 y X x + 3 2x + 1