Question

2 x raiz de 25 menos a raiz de 9/4 =

Answer 1

2. 5 - $\frac{3}{2}$, faz a multiplicação e depois tira o mmc

10 - $\frac{3}{2}$

$\frac{20 - 3}{2}$ ;

$\frac{17}{2}$

Answer 2

$2\sqrt{25} -\sqrt{\frac{9}{4}} =2\sqrt{5^{2}} -\sqrt{\frac{3^{2}}{2^{2}}}= 2.5 -\frac{3}{2} =10 -\frac{3}{2} =\frac{10.2-3.1}{2} =\frac{20-3}{2} =\frac{17}{2}$