Answer:
(a) 1/8(x -4)
Explanation:
You want the factored form of 1/8x -1/2.
Distributive property
The distributive property tells you that an expression with a multiplier outside parentheses is equivalent to the sum of products of that multiplier and every term inside parentheses.
The process is reversible. When the terms have a common factor, it can be removed to outside parentheses. Those parentheses will contain the sum of terms with that factor removed.
Application
1/8x -1/2
= 1/8x -4/8
= 1/8·x -1/8·4
= 1/8(x -4)
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