Question 447194
(x-3)(2x-7)=0
x=3 or 7/2
----------------
x2+6x-27=0
(x+9)(x-3)=0
x=-9 or 3
----------------
x2+6=-5x
x2+5x+6=0
(x+2)(x+3)=0
x=-2 or -3
----------------
x2-9=0
x2=9
x=3 or -3..