Alegbra
1) a-a
2)x(3+1)


Sagot :

Answer:

1.) 0

2.) 4x

Step-by-step explanation:

2.) x(3+1) = 3x+x = 4x

Answer:

1) a-a=(1-1)=0

2) x(3+1) =(3x+x)=4x

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