Question

-2+3,3хв кводрати - 0,7в куби при х=-1

Answer 1

-2+3,3Х2=-2+10,89х, если х=-1, то -2+(10,89*-1)= -2-10,89=-12, 89.

-0,7х 3=-0,343, если х=-1, то, -343*-1=0,343

Answer 2

$-2+3,3x^{2}-0,7^{3}=-2+3,3x^{2}-0,343=3,3x^{2}+(-2-0,343)=3,3x^{2}-2,343$

 

при х=-1; то 

$3,3cdot(-1)^{2}-2,343=3,3cdot1-2,343=3,3-2,343=0,957$