bm42400
bm42400 bm42400
  • 06-03-2019
  • Mathematics
contestada

What is the common denominator


A
B
C
D

What is the common denominator A B C D class=

Respuesta :

kudzordzifrancis
kudzordzifrancis kudzordzifrancis
  • 06-03-2019

Answer:

A. [tex](x+2)(x-2)[/tex]

Step-by-step explanation:

Denominator of the first fraction

[tex]x^2-4[/tex]

Factor using difference of two squares;

 [tex]x^2-2^2=(x+2)(x-2)[/tex]

Denominator of the second fraction

[tex]x+2[/tex]

The common denominator is the LCM of

[tex](x+2)(x-2)[/tex]  and [tex](x+2)[/tex]

Which is  [tex](x+2)(x-2)[/tex]

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