Zadanie 1
dla
x = -2
a)
2x^2-x^4+8x^3+3x^4-7-2x^4-5x^9=
=-5x^9+8x^3+2x^2-7=
=-5\cdot (-2)^9+8 \cdot (-2)^3+2 \cdot (-2)^2-7=
=-5\cdot (-512)+8\cdot (-8) + 2\cdot 4 - 7=
=2560 -64+8-7= 2497
b)
\frac{1}{2}x^5+x^4-\frac{1}{3}x^5+2x-x^4-\frac{1}{6}x^5+3=
=\frac{3}{6}x^5-\frac{2}{6}x^5-\frac{1}{6}x^5+3=
=2x+3=
=2\cdot (-2)+3=-4+3=-1