Помагите пж !?!?!?!?!
4x-12x+4-8x+4x=11З 4x-12x+8x+4x=11-4 -4x=7
спс
A) 4x^2 - 12x + 9 - 8x -4x^2=11 -20x+9=11 - 20x=11-9 -20x=2 x=-2/20 x=-1/10 x= - 0.1 б) 3x * (3+4x)-16x^2+2x=0 9x 12x^2-16x^2 +2x=0 11x - 4x =0 x*(11-4x)=0 x=0 11-4x=0 x=0 x=11/4 x1=0 ; x2 =11/4