Найдите значение выражения 1) 5*(1/5)^2+14*1/5. 2)9*(1/3)^2-3*1/3

Question

Найдите значение выражения
1) 5*(1/5)^2+14*1/5.
2)9*(1/3)^2-3*1/3

Answer 1

1) 5*(1/5)^2 + 14*(1/5) = (1/5)*(5/5 + 14) = 1/5 * 15 = 3;

2) 9*(1/3)^2 - 3*(1/3) = (1/3)*(9/3 - 3) = 1/3 * 0 = 0;