Find the least common denominator for the expression.
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A) (3x + 10)(10x - 5)
B) (x + 10)(x + 2)
C) x + 10
D) x + 2

Question

Find the least common denominator for the expression.
-
A) (3x + 10)(10x - 5) 
B) (x + 10)(x + 2) 
C) x + 10 
D) x + 2

Quizplus · Accepted Answer

Since the expression only has denominators of (x + 10) and (x + 2), the least common denominator is their product, which is (x + 10)(x + 2). Since the expression only contains two terms, the least common denominator is simply the product of the two denominators, which is (x + 10)(x + 2). That is only an option in choice B.

Find the Least Common Denominator for the Expression