№792 а в д ж №795 а в
4m-4-4m²-4m-1=-4m²-5 2k-10k²-4+12k-9k²=-19k²+14k-4 6p-p²+36-6p+p²+4p+4=4p+36=p+9 x²-9-x²-10x-25= -10x-34=-5x-17 49-14x+x²-x²+64-43=0 -14x=-70 x=5 36x²+12x+1-36x²+12x-1=0 24x=0 x=0