" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
-3a+7b
------------(+)
a + 2b
2. -2x^2 - 4y^2 + 2z^2
-5x^2 + 6y^2 - 7z^2
------------------------------(-)
3x^2 - 10y^2 + 9z^2
-3a+7b
------------(+)
a + 2b
2. -2x^2 - 4y^2 + 2z^2
-5x^2 + 6y^2 - 7z^2
------------------------------(-)
3x^2 - 10y^2 + 9z^2