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b) -2,8a *40ax*(-1)*a^= -80a^x * (-1) * a^ = 80 a(do potęgi 3.)x
c) (-6y)*(-y)*(-0,2)*y= 6y^ *(-0.2y) = -1.2y(do potęgi 3.)
d) (2 1/2)*x*(-1 4/5)*(-10)xy= - 4 1/2x *(-10)xy = 45x^y
e) -4*(-x)*(-y)*(-y)*x*y^= 4x * (-y^) * xy^ = -4xy^ * xy^ = -4x^y(do potęgi 4.)
f) 1/3 * a*a*(-b)*a*(-b)*1/3= 1/3a^ * (-ab) * (-1/3b) = -1/3a(do potęgi 3.)b * (-1/3b) = 1/9 a(do potęgi 3.) b^