Mathematics, 02.09.2021 15:00, brionna246

Which equation shows the quadratic formula used correctly to solve 7x2 = 9 + x for x? -171012-47(9
207)
11 VC-12-47709
2(7)
-17-12-479
2(7)
X
11 16-1)2+46709
207)
X=
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Which equation shows the quadratic formula used correctly to solve 7x2 = 9 + x for x? -171012-47(9...