#x^2-11x+30=0#
#(x-6)(x-5)=0color(white)(aaaa)# Factor
#x-6=color(white)a0color(white)(aaa)x-5=0color(white)(aaa)# Set each factor equal to zero
#color(white)(a)+6color(white)a+6color(white)(aa^11a)+5color(white)(a)+5color(white)(aaaa)# and
#color(white)(aa^1a)x=6color(white)(aaaaaaa)x=5color(white)(aaaaa)# solve