Question 503491
(x-1)(x-2) = 30
expand
x^2 -1x -2x + 2 = 30
collect terms
x^2 -3x -28 = 0
factor
(x-7)(x+4) = 0
so
x=7 or x=-4.
.
{{{graph(500,500,-10,10,-35,35,x*x-3*x-28)}}}