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2x2 - 5x - 3 = 0

A quadratic equation expressed in the form ax2 + bx + c = 0 has two real and distinct roots when b2 - 4ac is positive.

Using the figures from the supplied equation then b2 - 4ac = 52 - (4 x 2 x -3) = 25 + 24 = 49.

Therefore there are TWO real and distinct roots.

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Q: How many real roots does the equation 2x2-5x-3 equals 0 have?
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