Question

10. Factorise :4x2-25​

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Rewrite 4x2 4 x 2 as (2x)2 ( 2 x ) 2 . Rewrite 25 as 52 . Since both terms are perfect squares, factor using the difference of squares formula, a2−b2=(a+b)(a−b) a 2 - b 2 = ( a + b ) ( a - b ) where a=2x a = 2 x and b=5 .