10c(9c-1)-8=88c+10
(1) Multiply out the parentheses.
(2) Combine terms.
(3) Solve the resulting quadratic equation.
1. 90c^2 -10c -8 = 88c + 10
2. 90c^2 -98c -18 = 0
3. 45c^2 -49c -9 = 0
c = (1/90)[49 +/- sqrt4021]
= 1.249 or -0.160
(2) Combine terms.
(3) Solve the resulting quadratic equation.
1. 90c^2 -10c -8 = 88c + 10
2. 90c^2 -98c -18 = 0
3. 45c^2 -49c -9 = 0
c = (1/90)[49 +/- sqrt4021]
= 1.249 or -0.160