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Calculate the discriminant to determine the number of real roots of the quadratic equation y=x^2+3x−10.

A) no real roots

B) three real roots

C) one real root

D) two real roots

User MCCCS
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1 Answer

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Hello!

x² + 3x - 10

The discriminant Δ is calculate by the formula: b² - 4ac

Δ = b² - 4ac

Δ = 3² - 4 * 1 * (-10) = 9 + 40 = 49

The discriminant is > 0 so there are two real roots.

User TheWolf
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