Verified answer

FINDING THE ROOTS

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Question:

What are the roots of the quadratic equation

x² + 2x - 15 = 0?

Answer:

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Solve:

• Factor out the equation where (c) is the product of the roots, (b) is the sum of the roots, and (a) is not equal to zero.

• Make the two expressions equal to zero.

• Transpose to find the roots. Don't forget to negate the symbol when transposing.

Thus, the roots of the given equation are 3 and -5.

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