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-2*4* (-½) * (-5) = -2*(-½) * 4* (-5) = 1* (-20) = -20
b)-3x² dla x= - 1/3
-3* (-⅓)² = -3 * ¹/₉ = -⅓
c)1/2 mn dla m = -8 , n = 2½ = ⁵/₂
½ * (-8) * ⁵/₂ = - 4 * ⁵/₂ =-10
d)0,2 yz dla y = -5 , z = -3,2
0,2 * (-5) * (-3,2) = -1 * (-3,2) = 3,2
b)-3 * (-1/3)^2=-3*1/9=1/3
c)1/2*(-8)*2 1/2=-10
d)0,2*(-5)*(-3,2)=3,2
-3 * (-1/3)^2=-3*1/9=1/3
1/2*(-8)*2 1/2=-10
0,2*(-5)*(-3,2)=3,2