help?! please don't get this

label Algebra
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schedule 1 Day
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Feb 12th, 2015

Please note that you have to solve the subsequent equation:

3 x^2 + 12 x + 15 =0

so I factor out 3 from the left side, and I get:

x^2 + 4x + 15 =0

the I apply the standard formula in order to get the roots of that equation:

x = -2 +/- sqrt(4 - 5),

x = -2 +/- i

where, as usual, i is such that i^2 = -1

Feb 12th, 2015

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Feb 12th, 2015
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Feb 12th, 2015
Jun 26th, 2017
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