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Type: Multiple-Choice
Category: Polynomials and Rational Expressions
Level: Grade 9
Author: lmwise
Last Modified: 7 years ago

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Grade 9 Polynomials and Rational Expressions

What is the least common denominator?

$1/(x+1)+4/((x+1)(x-1)$

$(x+1)(x-1)$
$(x+1)(x+1)$
$(x-1)$
$(x+1)$