Simplify this expression. 4(9n-9) a. -10n+20 b. -10n+19 c. 36n-36 d. -8n+56

asked Oct 16, 2017 226k views

3 votes

Simplify this expression.

4(9n-9)

a. -10n+20
b. -10n+19
c. 36n-36
d. -8n+56

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C. If you multiply 4 times 9= 36n- 36(you have to multiply all the numbers in the parenthesis by the outside number.

Bart Schuller answered Oct 18, 2017

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1 vote

4(9n-9)
= 4*9n -4*9 (distributive property)
= 36n -36

The correct answer is c. 36n -36~

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