Question

. What should be added to a2 + 3ab + b2 to obtain 4ab + 3b2-5a2 ? ​

Answer 1

Answer:

ab + 2b² - 6a²

Step-by-step explanation:

Let the polynomial be x.

x + (a² + 3ab + b²) = 4ab + 3b² - 5a²

x = (4ab + 3b² - 5a²) - (a² + 3ab + b²)

x = 4ab + 3b² - 5a² - a² - 3ab - b²

x = ab + 2b² - 6a²

Answer 2

Answer:

ab-6a2+2b²

Step-by-step explanation:

x+(a²+3ab+b²)=4ab+3b²-5a²

x=(4ab+3b²-5a²)-(a²+3ab+b²)

x=4ab+3b²-3ab-b²

ans x=ab-6a2+2b²