ehaag20 ehaag20
  • 13-03-2018
  • Mathematics
contestada

help please 40 points per question

help please 40 points per question class=

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AnimeBrainly
AnimeBrainly AnimeBrainly
  • 13-03-2018
Use FOIL (First, Outside, Inside, Last)

x(x) = x²
x(9) = 9x
-2(x) = -2x
-2(9) = -18

x² + 9x - 2x - 18

simplify by combining like terms

x² + 9x - 2x - 18

x² + 7x - 18

x² + 7x - 18 is your answer

hope this helps
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