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DerKrebs [107]
3 years ago
8

Need help with the answer please and thank you

Mathematics
1 answer:
Elza [17]3 years ago
6 0
The correct answer is 192
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Solve 3x^2=-12x-15 using a quadratic equation with complex solutions
adelina 88 [10]

The complex solution of a quadratic equation are (- 2 + i ) and

(- 2 - i ).

What is Quadratic equation?

An algebraic equation of the second degree is called a quadratic equation.

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A quadratic equation is;

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3x² + 12x + 15 = 0

Take 3 common, we get;

3 (x² + 4x + 5) = 0

x² + 4x + 5 = 0

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x = - 4 ± √-4 / 2

Since, √-1 = i

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It gives two values of x as;

x = - 2 + i

And, x = - 2 - i

Hence, The complex solution of a quadratic equation are (- 2 + i ) and

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