Answers CMS 2026-2027 NC Math 3 CREDIT RECOVERY PretestQuestion 6

6

lesson pretestMultiple Choice

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Question 6 • CMS 2026-2027 NC Math 3 CREDIT RECOVERY

What substitution should be used to rewrite 4 x to the 4th power minus 21 x squared plus 20 is equal to 0 as a quadratic equation?

Answer

A

u is equal to x squared

B

u is equal to 4 x to the 4th power

C

u is equal to 2 x squared

D

u is equal to x to the 4th power

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