Question

Find the product
(1/5x - 1/3y) (1/5x-1/7y)

Answer 1

$\underline{\mathfrak{\huge{Answer}}}$

= (${\huge{\frac{x}{5}}}$ - ${\huge{\frac{y}{3}}}$ $)({\huge{\frac{x}{5}}}$ - ${\huge{\frac{y}{7}}}$)

= ( ${\huge{\frac{3x - 5y}{15}}}$)( ${\huge{\frac{7x - 5y}{35}}}$)

= ${\huge{\frac{21x^2 - 15xy - 35xy + 25y^2 }{525}}}$

= ${\huge{\frac{21x^2 - 40xy + 25y^2}{525}}}$

Hence, This is the $\underline{\mathfrak{\huge{Answer}}}$

(OR)


= ${\huge{\frac{21x^2 - 35xy - 15xy + 25y^2 }{525}}}$

= ${\huge{\frac{7x(3x - 5y) - 5y(3x - 5y)}{525}}}$

= ${\huge{\frac{(3x - 5y)( 7x - 5y)}{525}}}$

$\underline{\mathfrak{\huge{Thank You}}}$