Title: Place the expressions to the corresponding arithmetic laws.

- \((a + b)\cdot(a - b) = a² – b²\)
- \(– (– a – b) = a + b\)
- \(a\cdot (b+c) = a\cdot b + a\cdot c\)
- \(a\cdot b\cdot c = (a\cdot b)\cdot c = a\cdot (b\cdot c)\)
- \(a + b = b + a\)
Q: Associative law
A: \(a\cdot b\cdot c = (a\cdot b)\cdot c = a\cdot (b\cdot c)\)
Q: Distributive law
A: \(a\cdot (b+c) = a\cdot b + a\cdot c\)
Q: Conclusions
A: \(– (– a – b) = a + b\)
Q: Binomial formulas
A: \((a + b)\cdot(a - b) = a² – b²\)
Q: Commutative law
A: \(a + b = b + a\)