Question

bài 1 :

     a,A= (2^9.16+2^8.24):2^11

     b,B=-119(219-43)-219(43-119)

Answer 1

a,

A=\(\left(2^9.16+2^8.24\right):2^{11}\)

A=\(\left(2^8.2.16+2^8.24\right):2^{11}\)

A=\(\left(2^8.32+2^8.24\right):2^{11}\)

A=\(\left[2^8.\left(32+24\right)\right]:2^{11}\)

A=\(\left(2^8.56\right):2^{11}\)

A=\(\left(2^8.8.7\right):2^{11}\)

A=\(\left(2^8.2^3.7\right):2^{11}\)

A=\(\left(2^{8+3}.7\right):2^{11}\)

A=\(\left(2^{11}.7\right):2^{11}\)

A=\(2^{11}.7:2^{11}\)

A=\(\left(2^{11}:2^{11}\right).7\)

A=\(1.7\)

A=\(7\)