" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
= 4x⁴ - 5x⁴ + 3x³ - 2x²y + x²y + x + y
= -x⁴ + 3x³ - x²y + x + y