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17-11-2022
Mathematics

contestada

Which equation shows the quadratic formula used correctly to solve 7x² = 9+ x for x?
X=
OX=
O
-1± √(1)-4(7) (9)
2(7)
1± √(-1)²-4(7) (9)
2(7)
-1± √(-1)² +4(7) (9)
2(7)
1± √(-1)² +4(7)(9)
2(7)

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