AnswersNC-Math 4 CRAdding and Subtracting Matrices — Cumulative examQuestion 22
22
RCMultiple Choice

Adding and Subtracting Matrices — Cumulative exam

Question 22 • NC-Math 4 CR

What are the solutions of the equation x4 – 5x2 – 36 = 0? Use factoring to solve.

Answer
A
x = ±2 and x = ±3
B
x = ±2i and x = ±3
C
x = ±2 and x = ±3i
D
x = ±2i and x = ±3i
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