Zadanie 2
a)
[tex]7a -20 = 7 * (-6) - 20 = -42 - 20 = -62\\[/tex]
b)
[tex]50- 3x = 50 - 3 * 9 = 50 - 27 = 23[/tex]
c)
[tex]10m + m^2 = 10 * 2 + 2^2 = 20 + 4 = 24[/tex]
d)
[tex]w^2 - 4w = -5^2 - 4* (-5) = - 25 + 20 = -5[/tex]
e)
[tex]2z^3 + 3z = 2 * 1^3 + 3 * 1 = 2 * 1 + 3 = 2 + 3 = 5[/tex]
f)
[tex]4t - 2 = 4 * \frac{1}{2} - 2 = 2 - 2 = 0[/tex]
