Another way to solve it to transfor the equaton into the following form:

Ax^2+Bx+C = 0

and use the quadratic formula to find the solutions "x1" and "x2"

You have typed in 

if you move "1/4" to the left hand side you will get:

Multiply both sides by "12" (since LCD for 3,12 and 4 is 12)

Now you know that 

A = 4

B = 1

C = -3

and you can plug the values into the quadratic formula and find that

Click here to see the step by step calculation m1

m1 = 3/4

Click here to see the step by step calculation for m2

m2 = -1