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Mkey [24]
3 years ago
6

Solve the quadratic equation by completing the square.

Mathematics
1 answer:
cricket20 [7]3 years ago
6 0

x^2+4x-3=0\\(x^2+4x+4) -3-4=0\\(x+2)^2=7\\x+2=\pm\sqrt{7}\\x=-2\pm\sqrt{7}

The appropriate choice is

... D) x = -2 ±√7

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