Question
Simplify using suitable identity:
(3x - 5y - 4) (9x2 + 25y2 + 16 +15xy - 20y + 12x)
(3x - 5y - 4) (9x2 + 25y2 + 16 +15xy - 20y + 12x)
✓
Answer
$27 x^3-125 y^3-64-180 x y$
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