\[\boxed{\text{437\ (437).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
Пояснение.
Решение.
\[1)\ 6,32x - x^{2} = x \cdot (6,32 - x)\text{\ \ }\]
\[если\ x = 4,32:\]
\[4,32 \cdot (6,32 - 4,32) = 4,32 \cdot 2 =\]
\[= 8,64.\]
\[2)\ a^{3} + a^{2}b = a^{2} \cdot (a + b)\ \]
\[если\ a = 1,5;\ \ \ \ \ b = - 2,5:\]
\[{1,5}^{2} \cdot (1,5 - 2,5) = 2,25 \cdot ( - 1) =\]
\[= - 2,25.\]
\[3)\ m^{3}p - m^{2}n^{2} =\]
\[= m^{2} \cdot \left( mp - n^{2} \right)\]
\[\ \ если\ m = 3;p = \frac{1}{3};\ \ \ \ \ n = - 3:\]
\[3^{2} \cdot \left( \frac{1}{3} \cdot 3 - ( - 3)^{2} \right) =\]
\[= 9 \cdot (1 - 9) = 9 \cdot ( - 8) = - 72.\ \]