1.Zapisz w jak najprostszej postaci.
a(a+b+c)-b(a-b+c)-c(a-b-c)
x(x^+2x+1)-(-4x*+8x^-6):2
^ potega do dwóch
* poteda do trzech
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a(a+b+c)-b(a-b+c)-c(a-b-c) = a² + ab + ac- ba + b² - bc- ca+ cb + c² = a² + b² + c²
x(x^+2x+1)-(-4x*+8x^-6):2 = x³ + 2x² + x + 2x³ - 4x² + 3 = 3x³ -2x² + x + 3