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2. Secondaria primo grado
3. Classe 3 algebra
4. Polinomi

1. 1. Operazioni con i polinomi Antonio Bernardo
2. 2. Quadrato del binomio Antonio Bernardo
3. 3. $5/4 xy*(1/2 x+y)+1/2 x^2*(y-1) Antonio Bernardo
4. 4. $(1/2 a+5ab)(-3/5 ab)+1/2 (2a^2b^2)(1+2b) Antonio Bernardo
5. 5. $3/2 a {[(3/2 a)^2-(-5/3 a)^2-(1/2 a)^2+2b]-b+2a*(3/6 a-2b)} Antonio Bernardo
6. 6. $(-1/2 x+1)(1/2 x-1)-(x+1/2)^2-3/2 x*(2x-1)(2x+1) Antonio Bernardo