First thing we shall do when solving this is to simplify both sides of the equation: 2x^2+3x+−3/18=123 Second thing we are going to do is subtract 123 from both sides: 2x^2+3x+−318−123=123−123 2x^2+3x+−1015/8=0 Now it's time to use the quadratic formula with a=2, b=3, c=-126.875 so: x=−b±√b^2−4ac/2a x=−(3)±√(3)^2−4(2)(−126.875)/2(2) x=−3±√1024/4 So the answer is: x=29/4 or x=−35/4