Question

subtract a² - 4b² + 3ab - 20 from 2a² + 6b² + 7ab + 12​

Answer 1

Answer:

answer is a^2+10b^2+4ab+32

Step-by-step explanation:

given in the attachment

Answer 2

Step-by-step explanation:

$2 {a}^{2} + 6 {b }^{2} + 7ab + 12 \\ -( {a}^{2} - 4 {b}^{2} + 3ab - 20) \\ = {a}^{2} + 10 {b}^{2} + 4ab + 32$