find the cubes of : 2a-3bc
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Explanation:
(2a + 3b)3 = (2a)3 + (3b)3 + 3×2a×3b(2a + 3b). = 8a3 + 27b3 + 18ab (2a + 3b). = 8a3 + 27b3 + 36a2b + 54ab2. = 8a3 + 36a2b + 54ab2 + 27b3
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