Question

(6-1\2 x ) ( 6+1\2 x)

Answer 1

5/2x . 7/2x

35
4x²

35/4x²

Answer 2

Vamos lá!

$(\frac{6-1}{2x}) (\frac{6+1}{2x})$

$\frac{5}{2x}$   *   $\frac{7}{2x}$

$\frac{35}{4x^{2}}$