anaicemurillo07 anaicemurillo07
  • 06-05-2018
  • Mathematics
contestada

Simplify the expression: x2 + x(x – 5) – x + 7 a. 2x2 – 6x + 7 b. x3 –5x + 7 c. 6x2 – x + 7 d. –5x2 – x + 7

Respuesta :

MrsStrong
MrsStrong MrsStrong
  • 17-01-2019

Answer:

A

Step-by-step explanation:

To simplify, distribute and combine like terms (same variables):

[tex]x^2+x(x-5)-x+7\\x^2+x^2-5x-x+7\\2x^2-6x+7[/tex]


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