3 years ago

Complete the perfect square v^2-2v=3

1 answer:

4 0

V² - 2v = 3
v² - 2v - 3 = 0
v = -(-2) +/- √((-2²) - 4(1)(-3))
 2(1)
v = 2 +/- √(4 + 12)
 2
v = 2 +/- √16
 2
v = 2 +/- 4
 2
v = 2 + 4 v = 2 - 4
 2 2
v = 6 v = -2
 2 2
v = 3 v = -1

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