Question

subtract:
$x ^{2} \: \: + \: y ^{2} \: \: + 3xy \: \: \: from \: \: 4x ^{2} \: \: + 2xy \: \: - 3y ^{2}$
​

Answer 1

Step-by-step explanation:

$3 {x}^{2} - xy - 4 {y}^{2}$

it ia the answer

Answer 2

Step-by-step explanation:

$(4 {x}^{2} + 2xy - 3 {y}^{2} ) - ( {x}^{2} + {y}^{2} + 3xy)$

$= 4 {x}^{2} + 2xy - 3 {y}^{2} - {x}^{2} - {y}^{2} - 3xy$

$= 3 {x}^{2} - 4 {y}^{2} - xy$

$= 3 {x}^{2} - xy - 4 {y}^{2}$