21.F -25*5=(-125)2.F 18-12-63.P 4+(-3)=13 a) (-3+2)(-3-2) = -1*(-5) = 5b) (3*(-3)*2+2)/2 = (-18+2)/2 = -16/2 = (-8)c) -3(2*(-3) + 4) = -3(-6+4)= -3(-2) = 6
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2
1.F -25*5=(-125)
2.F 18-12-6
3.P 4+(-3)=1
3
a) (-3+2)(-3-2) = -1*(-5) = 5
b) (3*(-3)*2+2)/2 = (-18+2)/2 = -16/2 = (-8)
c) -3(2*(-3) + 4) = -3(-6+4)= -3(-2) = 6