angeleyes42 angeleyes42
  • 25-03-2019
  • Mathematics
contestada

simplify (-5xsquared-3x-7)+(-2x to the 3rd +6x squared-8)

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gmany
gmany gmany
  • 04-04-2019

Answer:

[tex]\large\boxed{(-5x^2-3x-7)+(-2x^3+6x-8)=-2x^3-5x^2+3x-15}[/tex]

Step-by-step explanation:

[tex](-5x^2-3x-7)+(-2x^3+6x-8)\\\\=-5x^2-3x-7-2x^3+6x-8\qquad\text{combine like terms}\\\\=-2x^3-5x^2+(-3x+6x)+(-7-8)\\\\=-2x^3-5x^2+3x-15[/tex]

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