Question #cefb6

1 Answer
Mar 12, 2017

-7ac+6bc+4c^2-3a^2-ab-2b^27ac+6bc+4c23a2ab2b2

Explanation:

4c(-a+b+c)-(3a(a+b+c)-2b(a-b+c))4c(a+b+c)(3a(a+b+c)2b(ab+c))

-4ac+4bc+4c^2-(3a^2+3ab+3ac-2ab+2b^2-2bc)4ac+4bc+4c2(3a2+3ab+3ac2ab+2b22bc)

:.=-4ac+4bc+4c^2-3a^2-3ab-3ac+2ab-2b^2+2bc

:.=-4ac-3ac+4bc+2bc+4c^2-3a^2-3ab+2ab-2b^2

:.=-7ac+6bc+4c^2-3a^2-ab-2b^2