Mathematics, 31.08.2019 11:30, antisnitch1
Sergey is solving 5x2 + 20x – 7 = 0. which steps could he use to solve the quadratic equation? check all that apply.
1) 5(x2 + 4x + 4) = –7 + 20
2) x + 2 =
3) 5(x2 + 4x) = 7
4) 5(x2 + 4x + 4) = 7 + 20
5) 5(x2 + 4x) = –7
6) x + 2 =
Answers: 2
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Sergey is solving 5x2 + 20x – 7 = 0. which steps could he use to solve the quadratic equation? chec...
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