" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
-x⁵ -x⁴
= -2x⁴ +2x³
2x⁴ +2x³
= 4x³ +3x²
-4x³- 4x²
= -x² +x
x² +x
= +2x +2
-2x -2
= =