250*x*4 81*a*27 b*3165*27 135*x*100 145*9*b 62445*c*725*4 a*31425*4*700 612*a*404*25 602*31*x*63 1225*c*4*25 упростите выражения
=1000x =2187a =854555b =13500x =1305b =181090500c =87990000a =6181200a =1175706x =122500c