Math 80 Final Exam#4 Review 1) Add: 3 5 3 2 x 9 x3 2) Simplify: 3) Simplify the complex fraction: 4) Simplify: 8) Simplify: x3 x5 4x 12 x8 5) Simplify: (3 2i)2 (5 3i)(2 i) 3i 2i 6) Simplify: 3 3 7) Simplify: 5 6 9) Rationalize: 24 x y z 4 10) Find the quotient: x 27 4x 12 3 12 5 27 2 75 2 7 2 7 2 x 5x x 10x x2 11) Find the equation of the line that contains (2,3) and (-5,4) 12) State the slope and y-intercept of the line: 5x – 2y = 8 2 13) Simplify: 27 3 15) State the domain of: 14) Find the inverse of: y = 2x + 7 2x 1 (write in interval notation) 6 3x Solve each: 16) 2x 1 5 12 17) 3 5x 1 9 2 18) 2x 3x 8 3x 2 100 19) 3 20) Log3 x 2 Answers for Math 80 Final Exam Review 1) 3x 14 ( x 3)( x 3) 2) x 2 3x 9 4 3) x8 4( x 5) 4) 13 + i 5) 5 + 12i 6) 3 6i 5 7) 3 3 8) 2 xyz 2 9) 3 3y2 11 4 7 3 10) x 3 3x 2 5x 1 23 11) y x 7 7 12) slope = 5/2 y-intercept (0, -4) 13) 9 14) f 1 ( x) 15) x 2 x7 2 or (,2) (2, ) 16) x = 25 17) x = -1 , x = 11/5 18) x 3 73 4 19) o.731 20) 1/9
© Copyright 2026 Paperzz