Question

Simplify:

−2(x² − y² + xy) −3(x² + y² − xy)

Answer 1

−2(x² − y² + xy) −3(x² + y² − xy)
Here a '−' sign precedes both the parenthesis. So, we will remove them and change the sign of each term within the two parentheses.
= −2x² +2y² − 2xy −3x² − 3y² + 3xy
= (−2 − 3)x² +(2 − 3)y² + (− 2 + 3)xy
= −5x² − y² + xy