proszę o pomoc w zadaniach :
A) 3 ax do kwadratu - 4 xa do kwadratu + 2 a x do kwadratu - (- x a do kwadratu)+4a =
.............................................................................................
B) - ( -2 a - 3 xy ) - ( -3a ) - ( 4 xy + 1 ) + ( xy - a ) =
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C ) 2 xy - ( - 3 xy + 4 x - y + 6 )=
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D) - 3x - ( - y - 2 xyz ) - ( xyz ) + ( - y - 6 ) =
..............................................................................................
E ) - ( -4 xy - 2 x do kwadratu + y ) + ( -x do kwadratu - 3 xy ) - ( -x do kwadratu ) =
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F ) 4 ab -3 x - ( - 4 ba - 3 x ) - ( 2ab ) =
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G ) - ( - 2 x - y + 4 ) - ( -5 x + 6 y ) + ( - 2y -x ) =
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A)
3ax² - 4xa² + 2ax² - (- xa²)+4a =
3ax²-4ax²+2ax²+xa²+4a =
2ax²+4a
B)
- ( -2 a - 3 xy ) - ( -3a ) - ( 4 xy + 1 ) + ( xy - a ) =
2a+3xy+3a-4xy-1+xy-a =
4a-1
C )
2 xy - ( - 3 xy + 4 x - y + 6 )=
2xy+3xy-4x+y-6 =
5xy-4x+y-6
D)
- 3x - ( - y - 2 xyz ) - ( xyz ) + ( - y - 6 ) =
-3x+y+2xyz-xyz-y-6 =
-3x+xyz-6
E )
- ( -4 xy - 2x² + y ) + ( -x²- 3 xy ) - ( -x² ) =
4xy+2x²-y-x²-3xy+x² =
xy+2x²-y
F )
4 ab -3 x - ( - 4 ba - 3 x ) - ( 2ab ) =
4ab-3x+4ba+3x-2ab =
6ab
G )
- ( - 2 x - y + 4 ) - ( -5 x + 6 y ) + ( - 2y -x ) =
2x+y-4+5x-6y-2y-x =
6x-7y-4
A) 3axkwadrat - 4xakwadrat +2axkwadrat + xakwadrat +4a = 4a + 5axkwadrat - 3xakwadrat
B) 2a+3xy -4xy-1+xy-a= 3a-1
C) 2xy+3xy-4x+y-6= 5xy-4x+y-6
D)-3x+y-2xyz -xyz+(-y) -6= -3x-3xyz-6
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