(A) : (4x + 3)(4x - 3)(3x - 5)
= $$(16x^2 - 12x + 12x - 9)(3x - 5)$$
= $$(16x^2 - 9)(3x - 5)$$
= $$48x^3 - 80x^2 - 27x + 45$$
(B) : (4x - 3)(4x - 3)(3x - 5)
= $$(16x^2 - 24x + 9)(3x - 5)$$
= $$48x^3 - 80x^2 - 72x^2 + 120x + 27x - 45$$
= $$48x^3 - 152x^2 + 147x - 45$$
(C) : (4x + 3)(4x + 3)(3x - 5)
= $$(16x^2 + 24x + 9)(3x - 5)$$
= $$48x^3 - 80x^2 + 72x^2 - 120x + 27x - 45$$
= $$48x^3 - 8x^2 - 93x - 45$$
=> Ans - (C)
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