Math Culminating

Math Culminating

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  •  ((x^2+10x+16))/(-x-2)=4x/(x+8)
  • Class, solve this
  • NO! That's Wrong!
  • This is my answer!
  • ((x+8)(x+2))/(-x-2)=4x/(x+8)(x+8)=4/8x+8-1/2=0x=15/2
  • In your first line, on the left hand side,you canceled x+2 with -x-2, you have to factor out the negative first
  • On the right hand side, you canceled the x in 4x with x in x+8.You CANNOT cancel out sums
  •  ((x+8)(x+2))/(-(x+2))=4x/(x+8)(-x-8)=4x/(x+8)
  • First factor out the negative from -x-2, and simply
  • Multiply both sides by x+8 to cancel the fraction, and simply
  •  (x+8)(-x-8)=(4x/(x+8))(x+8)-x^2-16x-64=4x
  • Move 4x to the other side and simply, then factor to solve the equation
  •  -x^2-20x-64=0-(x+4)(x+16)=0
  • x=-4x=-16 
  • You're so amazing!I'm filled with hope
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