FACTORIZE F1

Factorize 144x² - 169y²

 

Solution

 

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

 

144x²- 169y²  = 12²x² - 13²y²

 

                   = (12x)² - (13y)²

 

                   = (12x - 13y)( 12x + 13y)

 

Hence 144x² - 169y² = (12x - 13y)(12x + 13y)

 

TRY THIS………………………….

 

Factorize 196e²- 49f²