Question

factorise
$9 {x}^{2} + 30xy + 25 {y}^{2}$
​

Answer 1

Answer:

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Answer 2

Answer:

(3x+5y)² = (3x+5y)(3x+5y)

Step-by-step explanation:

9x²+30xy+25y²

= (3x)²+2×3x×5y+(5y)²

= (3x+5y)²

= (3x+5y)(3x+5y)

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