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(3x-5)³ = 27x³ - 3*9x²*5+3*3x*25 - 5³ = 27x³-135x²+225x-125
Z wzoru: a³+b³ = (a +b)(a²-ab+b²)
(64x³ +27y³) = (4x + 3y)(16x²-12xy+9y²)
(64x³+27y³)=(4x+3y)(16x²-12xy+9y²)