Mathematics, 16.09.2019 09:30, 22haydeabiy

Sergey is solving 5x2 + 20x – 7 = 0. which steps could he use to solve the quadratic equation? check all that apply.

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Sergey is solving 5x2 + 20x – 7 = 0. which steps could he use to solve the quadratic equation? chec...