tamangnin123 tamangnin123
  • 12-08-2019
  • Mathematics
contestada

x ^2-4÷ (x + 2 ) what is it's value???​

Respuesta :

hoangpm04
hoangpm04 hoangpm04
  • 12-08-2019

Answer:

x-2

Step-by-step explanation:

x^2 - 4 / (x+2)

x^2 - 4 can be factorise to become x^2 - 2^2

We know that a^2 - b^2 = (a-b) * (a+b)

Therefore x^2 - 2^2 = (x-2) * (x+2) / (x+2)

= x-2

Hope this help you :3

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