asiagryfice
I. -2(3x+1)=2-x -6x-2=2-x -5x-4=0 D. II. x(2x-5)-1=2x²+7x-4 2x²-5x-1=2x²+7x-4 -12x+3=0 C. III. x(x-1)/3-x²+3x/2=4x-1/6x²+2 /*6 2x(x-1)-3(x²+3x)=24x-x²+12 2x²-2x-3x²-9x=24x-x²+12 35x+12=0 B. IV. x(2x-1)/3=4x²+7/6 / *6 2x(2x-1)=4x²+7 4x²-2x=4x²+7 2x+7=0 A.
-6x-2=2-x
-5x-4=0
D.
II. x(2x-5)-1=2x²+7x-4
2x²-5x-1=2x²+7x-4
-12x+3=0
C.
III. x(x-1)/3-x²+3x/2=4x-1/6x²+2 /*6
2x(x-1)-3(x²+3x)=24x-x²+12
2x²-2x-3x²-9x=24x-x²+12
35x+12=0
B.
IV. x(2x-1)/3=4x²+7/6 / *6
2x(2x-1)=4x²+7
4x²-2x=4x²+7
2x+7=0
A.