KaylaRose01 KaylaRose01
  • 06-06-2019
  • Mathematics
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Find the least common denominator for these two rational expressions Please!!!!

Find the least common denominator for these two rational expressions Please class=

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jimrgrant1 jimrgrant1
  • 06-06-2019

Answer:

(x + 2)²(x - 1)

Step-by-step explanation:

Factorise the denominators of both fractions

x² + 4x + 4 ← is a perfect square = (x + 2)²

x² + x - 2 = (x + 2)(x - 1)

The fractions can be expressed as

[tex]\frac{x(x-1)}{(x+2)^2(x-1)}[/tex] and [tex]\frac{2(x+2)}{(x+2)^2(x-1)}[/tex]

least common multiple is (x + 2)²(x - 1)

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