ex 12)
va rog
repede
dau coroana

a) x = 8-3(21-19)
x=8-3·2
x=8-6
x=2
y = 1+124:41 (aducem la acelasi numitor)
y=165:41
x+y=2+165:41 (aducem la acelasi numitor)
x+y = 247:41
b) [tex]x^{y}[/tex] = [tex]2^{\frac{165}{41}}[/tex]