SOLUTION: State the value of the discriminant. Then determine the number of real roots of the equation. n(8n + 10) = -15

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Question 907697: State the value of the discriminant. Then determine the number of real roots of the equation.
n(8n + 10) = -15

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
State the value of the discriminant. Then determine the number of real roots of the equation.
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discriminant = b^2 - 4ac
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n(8n + 10) = -15
8n^2 + 10n + 15 = 0
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a = 8 ; b = 10 ; c = 15
b^2-4ac = 10^2 - 4*8*15 = 100 - 480 = -380
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Ans: Since the discriminant is negative, the number of Real roots is zero.
Cheers,
Stan H.
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