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Mathematics
7 December, 23:33
X^2+4x-11 in vertex form by completing the square
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Alexzander Ray
7 December, 23:38
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Use the coefficient of x, divide it by two and square it.
4/2=2
x^2+4x + (4-15)
(x+2) ^-15
vertex is (-2,-15)
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Elliot Gonzalez
7 December, 23:47
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X ^2 - 4x + 4 = 11 + 4
(x - 2) ² = 15
x - 2 = ±√15
x = 2 ±√15
I hope this is right or at least close ...; )
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