-5t+t-6-7t+8t+2+2t= dla t= -3,2
:P thx
-5t+t-6-7t+8t+2+2t=-5(-3,2)-3,2-7×(-3,2)+8×(-3,2)+2+2×(-3,2)=16-3,2+22,4-25,6+2+6,4=18
-5t+t-6-7t+8t+2+2t= -1t-6+2= -1x(-3,2)-6+2= 3,2-6+2= -0,8
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-5t+t-6-7t+8t+2+2t=-5(-3,2)-3,2-7×(-3,2)+8×(-3,2)+2+2×(-3,2)=16-3,2+22,4-25,6+2+6,4=18
-5t+t-6-7t+8t+2+2t= -1t-6+2= -1x(-3,2)-6+2= 3,2-6+2= -0,8