Question

144 x square - 121 y square

Answer 1

Your question is :

144x² - 121y²

= (12x)² - (11y)²

We know that a² - b² = ( a - b ) ( a+ b )

so,

144x² - 121y² = ( 12x - 11y ) ( 12x + 11y )

Answer 2

Step-by-step explanation:

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