jrodriguez84 jrodriguez84
  • 01-11-2018
  • Mathematics
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simplify the expression: 2x-5-x-8/x+4

simplify the expression 2x5x8x4 class=

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gmany
gmany gmany
  • 03-11-2018

[tex]2x-5-\dfrac{x-8}{x+4}=\dfrac{(2x-5)(x+4)}{x+4}-\dfrac{x-8}{x+4}\\\\=\dfrac{(2x)(x)+(2x)(4)+(-5)(x)+(-5)(4)-x-(-8)}{x+4}\\\\=\dfrac{2x^2+8x-5x-20-x+8}{x+4}=\dfrac{2x^2+2x-12}{x+4}[/tex]

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