Simplify dfracx2−342x−18\\dfrac{x^2 - 342}{x - 18}dfracx2−342x−18 for xneq18x \\neq 18xneq18
x+19x + 19x+19
x+18x + 18x+18
x−19x - 19x−19
x−18x - 18x−18