Question

(5a^{2}-11ac+8c^{2})+(-2c^{2}-7a^{2}+5ac)=

Answer 1

Объяснение:

(5а²-11ас+8с²)+(-2с²-7а²+5ас)=

=5а²-11ас+8с²-2с²-7а²+5ас=

= -2а²-6ас+6с²