Zadanie 1
a) 4 x 2.5 + 1 = 10
b) 2 x (10.5 - 8) = 5
c) [tex]\frac{(-6)^2-2(-6)}{3} =\frac{48}{3} =16[/tex]
d)[tex]\frac{9}{\frac{19}{5}-4} = -45[/tex]
e) [tex]\frac{7-13}{7+13} = -0.3[/tex]
f) [tex]0.5^3+0.5^2+0.5+1= 1.875[/tex]
Zadanie 2
a) 2 x 6 - 4 x (-2) + 8 = 12 + 8 + 8 = 28
b) [tex]\frac{5\cdot 8 \cdot 12}{8+12} = 24[/tex]
c) [tex](-9-1)^2+(0.5+1)^2=100+2.25 =102.25[/tex]
d)[tex]3^2 \cdot \frac{1}{3} + 3 \cdot \frac{1}{3} ^2 + 3^2 \cdot \frac{1}{3} ^2 = 3 + \frac{1}{3} + 1 = 4\frac{1}{3}[/tex]
Zadanie 3
[tex]14x+2\cdot20 = 14x + 40[/tex]
Zadanie 4
a) 3x+2y
b)2x+2y+z
