Question 21 Answer and Explanation _ACT December 2001 Form 58E Math Section

Question 21 Answer and Explanation _ACT December 2001 Form 58E Math Section

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21. (3xy + 21xy² - 7y) - (5xy + 12xy² - 3y) is equivalent to:

A. -8xy + 9xy² - 4y

B. -8xy + 33xy²- 10y

C. -2xy + 9xy²- 4y

D. -2xy + 9xy²- 10y

E. -2xy + 33xy² - 10y

Answer and Explanation

Your Answer is

Correct Answer is C

Explanation

Simplify the formula.