6
QuizMultiple Choice

Mixed Degree Systems — Unit test

Question 6 • MO-Algebra II A

Use the zero product property to find the solutions to the equation x2 – 9 = 16.

Answer
A
x = –3 or x = 3
B
x = –6 or x = –3
C
x = –5 or x = 5
D
x = 7 or x = 1

Explanation

Add 9 to both sides to get x² = 25, then write the equation as x² − 25 = 0. Factor: (x − 5)(x + 5) = 0. By the zero product property, x = 5 or x = −5, which is choice C.

AI-written and checked against the verified answer.

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