Question

1)$9x^{2}$-12x= - 4
2)$x^{2}$− 7x + 6 = 0

Answer 1

1)9x^2-12x+4=0
(3x-2)^2=0
3x-2=0
3x=2
x=0,6
2)x^2-x-6x+6=0
x(x-1)-6(x-1)=0
(x-1)(x-6)=0
x-1=0 і х-6=0
x=1 i x=6