Question

Помогитее решить 4 примера

Answer 1

Объяснение:

12)

$25 + 20x + 4x {}^{2} \\ 4x {}^{2} + 20 + 25$

14)

$36p {}^{2}q {}^{4} - 12p {}^{3}q {}^{3} + p {}^{4} q {}^{2}$

15)

$4x {}^{8} + 20b {}^{5} x {}^{7} + 25b {}^{10} x {}^{6}$

$\frac{81}{16} a {}^{2} + \frac{15}{2} ab + \frac{25}{9} b {}^{2}$