Question

calcule as expressões. 2×√25-√9/4

Answer 1

√25 = 5
√9 = 3

(2*5) - (3/4)
10 - 3/4
10/1 - 3/4

Aplicando MMC

40/4 - 3/4
R = 37/4

Answer 2

Vejamos: 2 x √25 - √9/4 = 2 x 5 - 3/2 = 10 - 3/2 = 20/2 - 3/2 = 17/2