Factorise 25 a ² 9b²
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1
this question is wrong.
Step-by-step explanation:
their is must be a sign of + after a^2
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3
Heya!
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Question :Factorise 25 a ² - 9b²
-----------------------------------------------------------------------------------------------------➡Factorize⬅
=> 25a² - 9b²
=> It can be written as:
⭐ (5a)² - (3b)²
=>>> Use the identity ( a² - b² ) = ( a + b ) ( a - b )
◾Here a => 5a and b => 3b
=>> 25a² - 9b² = ( 5a + 3b ) ( 5a - 3b )
⭐⭐Hence the final expression is ( 5a + 3b ) ( 5a - 3b )
------------❤️#sosan
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