Найдите значение выражения 1) 2*(1/2)^2-5*1/2 2)16*(1/4)^2-8*1/4

Question

Найдите значение выражения
1) 2*(1/2)^2-5*1/2
2)16*(1/4)^2-8*1/4

Answer 1

1) 2*(1/2)^2 - 5*(1/2) = (1/2)*(2/2 - 5) = 1/2 * (-4) = -2;

2) 16*(1/4)^2 - 8*(1/4) = (1/4)*(16/4 - 8) = 1/4 * (-4) = -1;