Odpowiedź:
2.
a) = 6x -12
b) = 18x + 12y - 30
c) = -15 + 2xy
3.
a) = -6
b) = -6xy
c) = -12
4.
a) = 3x - 6y
b) = -7a - 3ab -1
c) = 10x - 10y
5.
a) = 2x - 10 + 2x + 3 = 4x -7
b) = 6a - 2b + 4b + b - 3a = 3a + 3b
c) = -8x + 16
Szczegółowe wyjaśnienie:
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Odpowiedź:
2.
a) = 6x -12
b) = 18x + 12y - 30
c) = -15 + 2xy
3.
a) = -6
b) = -6xy
c) = -12
4.
a) = 3x - 6y
b) = -7a - 3ab -1
c) = 10x - 10y
5.
a) = 2x - 10 + 2x + 3 = 4x -7
b) = 6a - 2b + 4b + b - 3a = 3a + 3b
c) = -8x + 16
Szczegółowe wyjaśnienie: