Question

add the followingx2+y2,2x2,-3y2,3x2-4y2​

Answer 1

Answer:

Required sum,

=(2x2−3y2)+(5x2+6y2)+(−3x2−4y2)

Collecting like terms,

=2x2+5x2−3x2−3y2+6y2−4y2

Adding like terms,

=(2+5−3)x2+(−3+6−4)y2

=4x2−y2