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(2x)3 − 3 · (2x)2 · 3 + 3 · 2x · 32 − 33 =
= 8x 3 − 36 x2 + 54 x − 27
2-. 2 (x + 2)3 =
= x3 + 3 · x2 · 2 + 3 · x · 22 + 23 =
= x3 + 6x2 + 12x + 8
3-. 3(3x − 2)3 =
= (3x)3 − 3 · (3x)2 · 2 + 3 · 3x · 2 2 − 23 =
= 27x 3 − 54x2 + 36x − 8