College Algebra - Week 8
Homework
Check each answer individually. Use the hint if you get stuck, then ask the tutor.
Problem 1 · easy
Factor out the GCF: 6x^2 - 9x
Problem 2 · easy
Factor out the GCF: 12x^3y - 8x^2y^2 + 4xy
Problem 3 · easy
Factor: x^2 + 9x + 20
Problem 4 · easy
Factor: x^2 - 8x + 15
Problem 5 · easy
Factor: x^2 + 3x - 28
Problem 6 · easy
Factor: x^2 - 64
Problem 7 · easy
Factor: 4x^2 - 81
Problem 8 · easy
Factor: x^2 + 12x + 36
Problem 9 · medium
Factor: 9x^2 - 24x + 16
Problem 10 · medium
Factor: x^3 - 27
Problem 11 · medium
Factor: 8x^3 + 125
Problem 12 · medium
Factor by grouping: x^3 + 2x^2 + 3x + 6
Problem 13 · medium
Factor: 2x^2 + 7x + 3
Problem 14 · medium
Factor: 3x^2 - 10x - 8
Problem 15 · medium
Factor completely: 3x^3 - 12x
Problem 16 · medium
Factor completely: 5x^4 - 20x^2
Problem 17 · medium
Solve by factoring: x^2 - 7x + 12 = 0
Problem 18 · easy
Solve by factoring: x^2 - 5x = 0
Problem 19 · medium
Solve by factoring: 2x^2 + 5x - 3 = 0
Problem 20 · easy
Solve by factoring: x^2 - 16 = 0
Problem 21 · challenge
Solve by factoring: 6x^2 - x - 2 = 0
Problem 22 · challenge
Factor: 16x^4 - 1
Problem 23 · easy
Factor: x^2 + 5x + 6 and verify by expanding.
Problem 24 · challenge
Factor completely: 4x^3 - 4x^2 - 24x
Problem 25 · challenge
Solve: x(x + 4) = 21