Выражения 250*x*4,81*a*27,b*3165*27,135*x*100,145*9*2*b,62445*c*725*4,a*31425*4*700,612*a*404*25,602*31*x*63,1225*c*4*25

250*x*4=1000*x
81*a*27=2187*a
b*3165*27=85455*b
135*x*100= 13500*x
145*9*2*b=290*9*x=2610*x
62445*c*725*4=62445*2900*c=181090500
a*31425*4*700=125700*700*a=87990000*a
612*a*404*25=15300*404*a=6181200*a
602*31*x*63=18662*x*63=1175706*x
1225*c*4*25=1225*c*100=122500*c