12x sqaured minus 11x equals 15
I assume your problem is this:
12x^2 - 11x = 15
Note: you can use ^ to mean raised to the power of, such as x^2 means x raised to the power of 2 or x squared.
First, set the equation equal to 0.
12x^2 - 11x - 15 = 0
Next, try to factor:
(4x + 3)(3x - 5) = 0
Then set each factor equal to 0:
(4x + 3) = 0
(3x - 5) = 0
Solve each equation for x. Those solutions will be your two possible answers.
I hope this will help.