(-5.25)*(-4.73)-4.73*(-19

(-5.25)*(-4.73)-4.73*(-19.75)*25*(-5.27)

1个回答

(-5.25)*(-4.73)-4.73*(-19.75)*25*(-5.27)
=5.25*4.73-4.73*19.75*25*5.27
=25*4.73*(0.21-19.75*5.27)
=118.25*(-103.8725)
=-12282.923125