Question

B) Factorise the followings using appropriate identity :-

2)18a square - 32 b square​

Answer 1

Answer:

Step-by-step explanation:

18x²a² - 32

2( 9x²a² - 16 )

2{ ( 3xa )² - 4² }

By using formula, a² - b² = ( a + b ) ( a - b )

2( 3xa + 4 ) ( 3xa - 4 )

Hence, 18x²a² - 32 = 2( 3xa + 4 )( 3xa - 4 )

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