FACTORIZE C1

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Factorize 1-25m²

 

Solution

 

We use difference of two squares a² – b² = (a - b)(a + b)

 

1-25m² = 1²-5²m²       

 

            = 1² - (5m)²       

 

            = (1 - 5m)(1 + 5m)

 

Hence 1-25m² = (1 - 5m)(1 + 5m)  answer

 

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Factorize 1 – 49y²