– 75. (18 – 65) – 65. ( 75 - 18)
= -75. 18 - (-75).65 - 65.75 - 65.18
= -75. 18 +75. 65- 65.75 - 65.18
= 18. (-75-65)+0
= 18. (-140)
= -2520
- 75 . (18 - 65) - 65 . (75 - 18)
= - 75 . ( - 47 ) - 65 . 57
= 3525 - 3705
= - 180
- 32 + { -54: [(-2)3 + 7 . |-2|] . (-2)2 }
= 9 + { -54: [-8 + 7 . 2].4}
= 9 + { -54: [-8 + 14].4}
= 9 + { -54: 6.4}
= 9 + { -9 . 4}
= 9 + ( - 36)
= -27
\(a,-75.\left(18-65\right)-65.\left(75-18\right)\)
\(=-75.18-65.-75-75.65-65.18\)
\(=-75.\left(18-65+65\right)-65.18\)
\(=-75.18-65.18\)
\(=18.\left(-75-65\right)\)
\(=18.\left(-140\right)\)
\(=-2520\)