Question

25 x square - 49 factories it​

Answer 1

Solution :-

⇛ 25x^2 - 49

⇛ (5x)^2 - (7)^2

⇛ (5x + 7)(5x - 7)

• a^2 - b^2 = (a + b)(a - b)              

Answer 2

Answer:

( 5x + 7 ) ( 5x - 7 )

Step-by-step explanation:

We know,

a² - b² = ( a + b ) ( a - b )

Applying this identify, we get :-

=> 25x² - 49

=> ( 5x )² - ( 7 )²

=> ( 5x + 7 ) ( 5x - 7 ) ANS

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Verification :-

=> ( 5x + 7 ) ( 5x - 7 )

=> 5x ( 5x - 7 ) + 7 ( 5x - 7 )

=> 25x² - 35x + 35x - 49

=> 25x² - 49

{ Hence Verified }

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