Question

Simplify. 6a2−4b2+4abc−9b2−4a2+8abc

Answer 1

Answer:

$\huge\boxed{\sf 2a^2-13b^2+12abc}$

Step-by-step explanation:

Given expression:

$=6a^2-4b^2+4abc-9b^2-4a^2+8abc\\\\Combine \ like \ terms\\\\=6a^2-4a^2-4b^2-9b^2+8abc+4abc\\\\=2a^2-13b^2+12abc\\\\\rule[225]{225}{2}$

Answer 2

Answer:

Hello! The answer is: $2a^2 - 13b^2 + 12abc$

Step-by-step explanation:

$6a^2 - 4b^2 + 4abc - 9b^2 - 4a^2 + 8abc$

Rearrange to combine like terms:

$6a^2 - 4a^2 - 4b^2 - 9b^2 + 4abc + 8abc$

Combine like terms:

$2a^2 - 13b^2 + 12abc$