6x² plus 7x equals 5

Answer 1

6x2 + 7x = 5
6x2 + 7x - 5 = 0
x =[ -7 ± √[72 - 4(6)(-5)] ]/2(6)
x = [-7 ± √(49 + 120)]/12
x = (-7 ± √ 169)/12
x = (-7 ± 13)/12
x = (-7 + 13)/12 or x = (-7 - 13)/12
x = 6/12 = 1/2 or
x = -20/12 = - 5/3