Question

2-4а²+3а²+9х-7у+5а²-4х​

Answer 1

$2+4a^{2}+3a^{2}+9x-7y+5a^{2}-4x=2+4a^{2}+9x-7y-4x=2+4a^{2}+5x-7y$

Answer 2

Объяснение:

$2 - 4a { }^{2} + 3a {}^{2} + 9x - 7y + 5a {}^{2} - 4x = 2-a^{2}+9x-7y+5a^{2}-4x =2+4a^{2}+9x-7y-4x =2+4a^{2}+5x-7y$