factorise 25a^2-9b^2
Answers
Answered by
31
Heya!
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➡Factorize⬅
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=> 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 )
----------------------------------------------------------------------------------------------------
--------
-----------------------------------------------------------------------------------------------------
➡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 )
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DevilDoll12:
11
didi r u free plz ans to this q
which q ?
a^3+2a^2-a-2
have u posted ?
plz
no
sorry s
plz ans didi
fast
Answered by
4
Answer:Here's your answer dear. Please mark this answer as Brainalliest.
Step-by-step explanation:25a2-9b2
(5a)2-(3b)2 =(5a-3b) (5a+3b)
(Using identity (a2) -(b2) = (a-b) (a+b)
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