Ответ:
№8
(0,5x-1)(0,25x^2+0,5x+1)+0,875x^3=
=0.152x^3+0.5x^2+0.5x-0.25x^2-0.5x-1+0.875x^3=
1x^3+0.75x^2
Якщо х= -1/2 то:
1*(-0.5)^3+0.75*(-0.5)^2=
= -0.5^3*(-0.375)^2=
= -0.125*0.140625=
0.017578125
Объяснение:
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Answers & Comments
Ответ:
№8
(0,5x-1)(0,25x^2+0,5x+1)+0,875x^3=
=0.152x^3+0.5x^2+0.5x-0.25x^2-0.5x-1+0.875x^3=
1x^3+0.75x^2
Якщо х= -1/2 то:
1*(-0.5)^3+0.75*(-0.5)^2=
= -0.5^3*(-0.375)^2=
= -0.125*0.140625=
0.017578125
Объяснение: