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

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

4(9n-9)

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

User Havenard
by
7.5k points

2 Answers

0 votes
C. If you multiply 4 times 9= 36n- 36(you have to multiply all the numbers in the parenthesis by the outside number.
User Bart Schuller
by
8.7k points
1 vote
4(9n-9)
= 4*9n -4*9 (distributive property)
= 36n -36

The correct answer is c. 36n -36~
User Alex Van Den Hoogen
by
7.7k points
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