Factorize:
64a3+125b3+240a2b+300ab2
Given,
64a3 + 125b3 + 240a2b + 300ab2,
= (4a)3 + (5b)3 + 60ab (4a + 5b)
= (4a)3 + (5b)3 + 3×4a×5b (4a + 5b)
= (4a+5b)3
= (4a+5b)(4a+5b)(4a+5b)