\[\boxed{\text{825.}\text{\ }еуроки - ответы\ на\ пятёрку}\]
\[\textbf{а)}\ ( - 3a + 10b)^{2} = 9a² -\]
\[- 60ab + 100b²\]
\[\textbf{б)}\ ( - 6m - n)^{2} = 36m² +\]
\[+ 12mn + n²\]
\[\textbf{в)}\ (8x - 0,3y)^{2} = 64x² -\]
\[- 4,8xy + 0,09y²\]
\[\textbf{г)}\ \left( 5a + \frac{1}{15}b \right)^{2} = 25a² +\]
\[+ \frac{2}{3}ab + \frac{1}{225}b²\]
\[\textbf{д)}\ ( - 0,2p - 10q)^{2} = 0,04p² +\]
\[+ 4pq + 100q²\]
\[\textbf{е)}\ (0,8x - 0,1y)^{2} = 0,64x² -\]
\[- 0,16xy + 0,01y²\]