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  • 29-08-2018
  • Mathematics
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completing the square. a^2+2a-3=0

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TheBreeze
TheBreeze TheBreeze
  • 29-08-2018

a^2 + 2a - 3 = 0

a^2 + 2a = 3

a^2 + 2a + 1 = 3 + 1 (I added a 1 to both sides)

a^2 + 2a + 1= 4

(a + 1)^2 = 4

a = -3, 1

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