oblicz 30% wartości wyrażenia : x³- 2x²-4x+5 dla x= -1
x=-1
x³- 2x²-4x+5
(-1)³-2*(-1)²-4*(-1)+5=-1-2*1+4+5=-1-2+4+5=6
30%*6=0,3*6=1.8
(-1)^3+2*(-1)^2-4*(-1)+5=
-1-2+4+5=6
6----100%
x----30%
x=30%*6=1,8
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x=-1
x³- 2x²-4x+5
(-1)³-2*(-1)²-4*(-1)+5=-1-2*1+4+5=-1-2+4+5=6
30%*6=0,3*6=1.8
(-1)^3+2*(-1)^2-4*(-1)+5=
-1-2+4+5=6
6----100%
x----30%
x=30%*6=1,8