Question

6 ab - 5a² + 7- a² + 3 ab + 6b²​

Answer 1

Answer:

what should we do

Step-by-step explanation:

if we have to simplify then

-6a^2+6b^2+9ab-7

Answer 2

Answer:

2a²+6b²+9ab

Step-by-step explanation:

6ab-5a²+7a²+3ab+6b²

6ab+3ab+7a²-5a³+6b²

9ab+2a²+6b²

2a²+6b²+9ab

please mark my ans as brainleast

$let \: a = x \\ \: and \: b = y \\ 6xy - 5 {x}^{2} + 7 {x}^{2} + 3xy + 6 {y}^{2} \\ 7 {x}^{2} - 5 {x}^{2} + 6 {y}^{2} + 6xy + 3xy \\ 2 {x}^{2} + 6 {y}^{2} + 9xy$