Answers TX-Pre-Calculus Cumulative Exam — Cumulative examQuestion 17

17

RCMultiple Choice

Cumulative Exam — Cumulative exam

Question 17 • TX-Pre-Calculus

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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