\(a,A=27\times36+73\times99+27\times14-49\times73\\ =73\times\left(99-49\right)+27\times\left(36+14\right)\\ =73\times50+27\times50\\ =50\times\left(73+27\right)\\ =50\times100\\ =5000\)
\(b,B=\left(4^5.10.5^6+25^5.2^8\right):\left(2^8.5^4+5^7.2^5\right)\\ =\left(\left(2^2\right)^5.2.5.5^6+\left(5^2\right)^5.2^8\right):\left(2^8.5^4+5^7.2^5\right)\\ =\left(2^{11}.5^7+5^{10}.2^8\right):\left(2^8.5^4+5^7.2^5\right)\\ =\left[\left(2^8.5^7\right)\left(2^3+5^3\right)\right]:\left[\left(2^5.5^4\right)\left(2^3+5^3\right)\right]\\ =2^8.5^7:2^55^4\\ =\left(2^8:2^5\right).\left(5^7:5^4\right)\\ =2^3.5^3\\ =8.125\\ =1000\)
a, A = 27.36 + 73.99 + 27.14 - 49.73
A = ( 27 .36 + 27.14) + (73.99 - 49 .73)
A = 27.( 36 + 14) + 73. ( 99 - 49)
A = 27 . 50 + 73 .50
A = 50.( 27 + 73)
A = 50 .100
A = 5 000
b, B = (45 . 10.56 + 255.28) : ( 28.54 + 57.25)
B = ( 210.2.5.56 + 510.28): { 25.54.(23+ 53)}
B = ( 211. 57 + 510.28) : { 25.54.( 23 + 53)}
B = 28. 57( 23 + 53) : { 25.54.( 23+53)}
B = 23. 53
B = (2.5)3
B = 103
B = 1 000
