leawood420 leawood420
  • 03-05-2018
  • Mathematics
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What number must you add to complete the square x^2+20x=33

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kayeecheng2102p3s8sa kayeecheng2102p3s8sa
  • 03-05-2018
x²+20x-33=0
x²+2(10) (x) +10²-10 ²-33=0
(x+10) ²=133
x+10=±√133
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