Question

please help its urgent ​

Answer 1

Question :

What should be added to 2a² - 7ab + 5b² to obtain a² + 4ab - 3ab

Answer :

Let it be =x

2a² - 7ab + 5b² + x = a² + 4ab - 3ab

x = a² + 4ab - 3ab - 2a² - 7ab + 5b²

x= a² -6ab - 2a² + 5b²

Answer 2

Step-by-step explanation:

subtract 2a²-7ab+5b² from a²+4ab-3ab

a²+4ab-3ab-(2a²-7ab+5b²)

a²+4ab-3ab-2a²+7ab-5b²

a²-2a²+4ab-3ab+7ab-5b²

-a²+9ab-5b²