jilliand9340 jilliand9340
  • 23-05-2017
  • Mathematics
contestada

Solve the quadratic equation x2 + 16x = -64 by factoring.

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apologiabiology
apologiabiology apologiabiology
  • 23-05-2017
add 64 to both sides
x^2+16x+64=0
what 2 numbers multily to get 64 and add to get 16?
8 and 8
(x+8)(x+8)=0

set to zero
x+8=0
x=-8
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