Question

What should be added to 4 C bracket minus a + b + c bracket close to obtain a bracket a + b + c bracket close - 2 b bracket a minus b + c bracket close

Answer 1

Step-by-step explanation:

a (-a+b+c)-4c (-a+b+c)

-a^2+ab+ac-4ac-4bc-4c^2

-a^2-3ac-3bc-4c^2 should be added to the question