Remove or add parentheses as indicated.
-Rewrite $a ( b + c ) - b ( c + a )$ without parentheses.
A) ac - bc
B) $a c + b c$
C) $a c + b c + 2 a b$
D) $2 a b + a c - b c$

Name: Remove or add parentheses as indicated. -Rewrite $a ( b + c ) - b ( c + a )$ without parentheses. A) ac - bc B) $a c + b c$ C) $a c + b c + 2 a b$ D) $2 a b + a c - b c$
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Question

Quizplus · Accepted Answer

Expanding the expression $a(b + c) - b(c + a)$ gives $ab + ac - bc - ba$. Simplifying, $ab$ and $-ba$ cancel out, leaving $ac - bc$.

Remove or Add Parentheses as Indicated a(b+c)−b(c+a)a ( b + c ) - b ( c + a )a(b+c)−b(c+a)

Remove or Add Parentheses as Indicated $a ( b + c ) - b ( c + a )$