2
QuizMultiple Choice
Adding and Subtracting Matrices — Cumulative exam
Question 2 • NC-Math 4 CR
What are the solutions of the equation 9x4 – 2x2 – 7 = 0? Use u substitution to solve.
Answer
A
and x = ±1
B
and x = ±i
C
and x = ±1
D
and x = ±i
Question 2 • NC-Math 4 CR