Question

Subtract (2x2 – xy + y2

) from (9x2 – y

2 + 11xy )​

Answer 1

Answer:

$9 {x}^{2} - {y}^{2} + 11xy - (2 {x}^{2} + {y}^{2} - xy)$

${9x}^{2} - {y}^{2} + 11xy - {2x}^{2} - {y}^{2} + xy$

$7 {x}^{2} - 2 {y}^{2} + 12xy$