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RCMultiple Choice

Adding and Subtracting Matrices — Cumulative exam

Question 1 • NC-Math 4 CR

What are the solutions of the equation (x + 2)2 – 2(x + 2) – 15 = 0? Use u substitution to solve.

Answer
A
x = –7 and x = 1
B
x = –5 and x = 3
C
x = –3 and x = 5
D
x = –1 and x = 7
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