Question

refer from attachment
solve it​

Answer 1

Answer is in the picture.

Answer 2

Step-by-step explanation:

$\bf \: (3a \: - \frac{1}{2} )(3a \: - \frac{1}{2} ) = (3a \: - \frac{1}{2} )^{2} \\ \bf \: = (3a)^{2} - 2(3a)( \frac{1}{2} ) + ( \frac{1}{2} )^{2} \\ \bf \: = 9a^{2} - 3a + \frac{1}{4}$

[(a - b)^2 = a^2 - 2ab + b^2]

Hope it helps ಠ◡ಠ