Question

What should be added to 5a2 – 3ab + 8b2

to get 7b2 – 3ab?

Answer 1

Step-by-step explanation:

Let the number be x

x+ 5a²-3ab+8b²= 7b²-3ab

x= 7b²-3ab -5a²+3ab-8b²

x= -5a²-b²