S - 6 * (x-y)
T- x- 8y
Zadanie 1
Przedstaw wyrazenia w jak najprostrzej postaci :
A) S+T = ...
B) 2S + 3T
C) 4T - S
a)6(x-y)+x-8y=6x-6y+x-8y=7x-14y=[a żeby było ładniej :]7(x-2y)
b)2(6(x-y))+3(x-8y)=12x-12y+3x-24y=15x-36y=3(5x-12y)
c)4(x-8y)-6(x-y)=4x-32y-6x+6y=-2x-26y=-2(x+13y)
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a)6(x-y)+x-8y=6x-6y+x-8y=7x-14y=[a żeby było ładniej :]7(x-2y)
b)2(6(x-y))+3(x-8y)=12x-12y+3x-24y=15x-36y=3(5x-12y)
c)4(x-8y)-6(x-y)=4x-32y-6x+6y=-2x-26y=-2(x+13y)