Answer:
x = 9
Step-by-step explanation:
Given the equation:
x^2 - 18x + 81 = 0
solve for x
We can do this by factoring out the equation.
-9 + -9 = 18 and they multiply to equal 81 as well
so it becomes:
(x - 9)(x-9) = 0
x - 9 = 0
