Bhai yar vii se x tak bata do
Attachments:
Answers
Answered by
0
There are three expressions given -
2x^2 - 3y^2 ------(1)
5x^2 + 6y^2 ------(2)
-3x^2 - 4y^2 ------(3)
Lets add expressions (1), (2), (3)
(2x^2 - 3y^2) + (5x^2 + 6y^2) + (-3x^2 - 4y^2)
= (2x^2 + 5x^2 - 3x^2) + (6y^2 - 3y^2 - 4y^2)
= x^2(2 + 5 - 3) +y^2(6 - 3 - 4)
=x^2(4) + y^2(-1)
=4x^2 - y^2
4x^2 - y^2
Similar questions