Chapter IV review
Answers are for parents and teachers.
1
Factor 2a³ - 8a completely.
2a(a - 2)(a + 2)
2
Factor m² + 10m + 25 - n².
(m + 5 - n)(m + 5 + n)
3
Compute 101² - 1 with a formula.
10200
4
Solve x² - 5x = 0.
x = 0 or x = 5
5
Solve x² + 6x + 9 = 0 by writing it as (x + 3)² = 0.
x = -3