Question

Simplify.

6a2−4b2+4abc−9b2−4a2+8abc

Answer 1

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

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`

Answer 2

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

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}`