[tex] \frac{2}{5} ax + ax ^{2} - \frac{1}{10}ax - 0lax + a ^{2} - \frac{2}{3} a ^{2} + ax[/tex]
[tex]a \times ( \frac{2}{5} x + x ^{2} - \frac{1}{10} x0lx + a - \frac{2}{3} a + x)[/tex]
[tex]a \times ( \frac{2}{5} x + x ^{2} - \frac{1}{10} x + 0 + a - \frac{2}{3}a + x) [/tex]
[tex]a \times ( \frac{13}{10} x + x^{2} + \frac{1}{3} a)[/tex]
