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Andrew [12]
3 years ago
9

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

Mathematics
1 answer:
Dmitriy789 [7]3 years ago
4 0
V² - 2v = 3
v² - 2v - 3 = 0
v = <u>-(-2) +/- √((-2²) - 4(1)(-3))</u>
                    2(1)
v = <u>2 +/- √(4 + 12)</u>
                2
v =<u> 2 +/- √16</u>
           2
v = <u>2 +/- 4</u>
           2
v = <u>2 + 4</u>    v = <u>2 - 4</u>
         2                2
v = <u>6</u>          v = <u>-2</u>
      2                 2
v = 3          v = -1
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