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e)2x(do potegi 4)y - 2x²y³
f)9x² - 42x + 24
g)16x²y(do potegi 4) +36y²z²
h)18p²q(do pot 4) - 32
i)2x² + xy - y² + 6x
j)18x² - 9x³ - 2 + x
k)6x²y - 3x²y² + 4xy² - y² +3x²
l)4x² - a² - 2ab - b²
ł)x(do pot 4) - 16
m)16x(do pot 4) - y(do pot 4)