a) (-0,7)²·(-jedna czwarta)=
b) (-2)+(-0,8)²=
c) (-jedna trzecia)²-2,5=
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a)
(-0,7)²·(-1/4) = 0,49 · (-1/4) = -0,1225
b)
(-2)+(-0,8)²= (-2)+0,64 = -1,36
c)
(-1/3)²-2,5= 1/9 - 2,5 = 10/90 - 225/90 = -215/90 = -43/18
a) (-0,7)²·(-jedna czwarta)= 0,49 *1/4 = 49/100 * 1/4=49/400
b) (-2)+(-0,8)²= -2 + 0,64= -1,36
c) (-jedna trzecia)²-2,5= 1/9- 25/10= 10/90- 225/90=-215/90=-2 35/90 -2 7/18