Question

21. Simplify (27^3-y^3) ÷ (9x^2-y^2) × (3x^2 + 4xy + y^2) ÷ (9x^2 + 3xy + y^2)
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Answer 1

Answer:

$\frac{( {27}^{3} - {y}^{3}) }{ ({9x}^{2} - {y}^{2})} \times \frac{( {3x}^{2} + 4xy + {y}^{2}) }{ ({9x}^{2} + 3xy + {y}^{2} ) }$