Thực hiện phép tính: A = ( -5 ) . 8 . ( -2 ) . 3

Cau 1 : Thuc hien phep tinh ( tinh hop ly neu co the )
a, A = ( -5 ) . 8 . ( -2 ) . 3
b, B = 125 - ( -75 ) + 32 - ( 48 + 32 )
c, C = 37 . ( -4 )^2 + 23 . 16 + 16 . ( -160 )
Cau 2 : Tim tat ca gia tri x thuoc Z, biet :
a, ( -25 ) . x + 4 = 79
b, 5 + 18 : |x| = 23
c, 10 - 2 . ( x + 1 )^2 = 2
d, 3 chia het ( x - 1 )
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CAN GAP. CAM ON !!!!!!!