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Jaydon Cabrera
Mathematics
18 October, 09:43
What is the quadratic formula for 5x^2+9x-7=0?
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Paulina Mejia
18 October, 09:47
0
X = [ 9 ± √ (81 + 40) ] / 10
x = [ 9 ± √ (121) ] / 10
x = [ 9 ± 11) ] / 10
x = 2, x = - 1/5
OR
(5x + 1) (x - 2) = 0
x = - 1 / 5, x = 2
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Karissa Bates
18 October, 09:52
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The actual formula is - b±√b^2-4ac : 2a
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