Question

81n² -625 factors them

Answer 1

Solution :

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We know the algebraic identity

a² - b² = ( a + b )( a - b )

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Here ,

81n² - 625

= (9n)² - 25²

= ( 9n + 25 )( 9n - 25 )

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Answer 2

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we know the algebraic identity ....
a²-b² = (a+b) (a-b)
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so here is the solution..❤️

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$81n {}^{2} - 625 \\ = (9n) {}^{2} - (25) {}^{2} \\ =( 9n + 25) \: (9n - 25)$

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hope this will help you ..

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