# How do you simplify (3/5 - 1/5)^2 + (3/2)(-1/5)?

Apr 12, 2015

-$\frac{7}{50}$

Start by simplifying the parentheses first
=${\left\{\frac{3 - 1}{5}\right\}}^{2}$ -$\frac{3}{10}$

=${\left(\frac{2}{5}\right)}^{2}$ -$\frac{3}{10}$

=$\frac{4}{25}$ - $\frac{3}{10}$. Now make the denominators same equal to the lowest common denominator of 25 and 10. This would be 50

= $\frac{8}{50}$ -$\frac{15}{50}$

= -$\frac{7}{50}$