A) <span>0,5*√144-0,2*√25= 0,5 * 12 - 0,2 * 5 = 6 - 1 = 5
</span><span>Б) √2 корень 6 *3 корень 4=
</span><span>В)(√5)²-(√7)²= 5 - 7 = -2
</span>Г)√0,08*√2= <span>√0.16 = 0.4
</span>
2^n*3*(n+1) = 2^n*3*3^n = 3*6^n
a^m^a^n = a^(m+n)
3 ^ ( x + 1 ) * 2 ^ x = 108
3 ^ x * 3 * 2 ^ x = 108
6 ^ x = 108 : 3
6 ^ x = 36
6 ^ x = 6 ^ 2
x = 2
(a²-c²)-(a²-4ac+4c²)=a²-c²-a²+4ac-4c²=4ac-5c²