$a)$ $(3 x y - 5 x^{2} y) - (10 x y - 2 x^{2} y) = 3 x y - 5 x^{2} y - 10 x y + 2 x^{2} y = - 7 x y - 3 x^{2} y$

$b)$ $(- 12 a b c - 4 a^{2} b c) - (a b c + a^{2} b c) + 12 = - 12 a b c - 4 a^{2} b c - a b c - a^{2} b c + 12$ $= - 13 a b c - 5 a^{2} b c + 12$

$c)$ $(1 \frac{3}{5} x^{3} + \frac{2}{3} y^{2} - \frac{5}{6}) - (2, 4 x^{3} + y^{2} - 1 \frac{1}{6}) =$ $1, 6 x^{3} + \frac{2}{3} y^{2} - \frac{5}{6} - 2, 4 x^{3} - y^{2} + 1 \frac{1}{6} =$ $- 0, 8 x^{3} - \frac{1}{3} y^{2} + \frac{1}{3}$

$d)$ $(0, 5 x^{2} y^{2} - \frac{2}{3} a b - 1) - (- \frac{1}{3} x^{2} y^{2} + \frac{1}{12} a b - \frac{1}{4})$ $= 0, 5 x^{2} y^{2} - \frac{2}{3} a b - 1 + \frac{1}{3} x^{2} y^{2} - \frac{1}{12} a b + \frac{1}{4}$ $= \frac{5}{6} x^{2} y^{2} - 0, 75 a b - 0, 75$

$e)$ $(0, 4 a b - 0, 5 b c + 0, 1 c d) - (- 0, 3 a b + 2, 5 b c - c d) =$ $0, 4 a b - 0, 5 b c + 01 c d + 0, 3 a b - 2, 5 b c + c d) =$ $0, 7 a b - 3 b c + 1, 1 c d$

$f)$ $(4 x^{n} + 2 x^{m} + 5) - (x^{n} + x^{m} + 6) = 4 x^{n} + 2 x^{m} + 5 - x^{n} - x^{m} - 6$ $= 3 x^{n} + x^{m} - 1$

Najwygodniejszy sposób nauki z edukacyjnym Odrabiamy AI

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