Explain how you would solve x^2+4x-21=0x 2 + 4 x − 21 = 0 using the quadratic formula. Please be sure to include math vocabulary in your answer.

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Explain how you would solve x^2+4x-21=0x 2 + 4 x − 21 = 0 using the quadratic formula. Please be sure to include math vocabulary in your answer.

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