" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2(9x²-6xy+y²)-3(2xy-4x+y²-2y)+12xy
18x²-12xy+y²-6xy+12x+3y²-6y+12xy
-6xy+18x²+4y²-6y+12x
2 (9x^ - 6xy + y^) -3 (2xy -4x + y^ - 2y) +12xy=
18x^ - 12xy + 2y^ - 6xy + 12x - 3y^ + 6y + 12xy=
18x^ -6xy - y^ +12x + 6y
^ - to potęga :)
[patylutka najpierw potęgujemy :)]
dlatego ze 3y sie z redukuja i 6x tez.