mattylad08oxbafu mattylad08oxbafu
  • 04-10-2017
  • Mathematics
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(3x-2)^2-(x+6)(x-8)

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pimuang50 pimuang50
  • 04-10-2017
=(3x)^2-(8+6)(x-8)
=3^22^2-(x+6)(x-8)
=9x^2-(x+6)(x-8)
=9x^2-x^2+2x+48
=8x^2+2x+48
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choixongdong
choixongdong choixongdong
  • 04-10-2017
(3x-2)^2-(x+6)(x-8)
= 9x^2 - 12x + 4 -(x^2 +6x -8x - 48)
= 
9x^2 - 12x + 4 - x^2 + 2x + 48
= 8x^2 - 10x + 52

hope it helps
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