pomozcie prosze blagam was rozwiazcie rownanie

A. 3a-6m/12m-6a=3(a-2m)/6(2m-a)=(a2m)/2(2m-a)= - (a-2m)/ 2(a-2m)= - ¹/₂ B. 5x-y/2x²-y²=x-y/x-y(5/2x-y)=5/2x-y C. 8/15x - 4/7x²= 4/x( 2/15- 1/7x) D. 2x-5/x-1=5x-3/3x+5 6x²-15x+10x-25=5x²-3x-5x+3 6x²-5x-25=5x²-8x+3 6x²-5x-5x²+8x=3+25 x²+3x=28 E. x²-16x+64=0 x²-16x=-64 |√ x-4x=-8 -3x=-8|(-3) x=8/3=2 ²/₃ F. x²+x+2=0 x²+x=-2