Question

please don't forget to solve this

Answer 1

$\huge\boxed{\texttt{\fcolorbox{red}{aqua}{Hey Mate!!!}}}$
$<b><i><font face=Copper black size=4 color=blue>$
Here is your answer

$\frac{4}{25} {x}^{2} - \frac{9}{49} {y}^{2} \\ \\ = ( \frac{2x}{5}) {}^{2} - ( \frac{3y}{7} ) {}^{2} \\ \\ = ( \frac{2x}{5} + \frac{3y}{7} )( \frac{2x}{5} - \frac{3y}{7} )$

$\large{\red{\boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\boxed{\underline{\underline{\underline{Hope\:it\:helps\: you}}}}}}}}}}}}}}}$

$\huge\boxed{\texttt{\fcolorbox{Red}{yellow}{Be brainly!!!}}}$

$<marquee>$
$\huge\bf{\red{\huge{\bf{@.....rajeev378}}}}$

Answer 2

Hi friends
Here is your answer

$( \frac{2x}{5} ) {}^{2} - ( \frac{3x}{7} ) {}^{2} \\ = ( \frac{2x}{5} + \frac{3x}{7} )( \frac{2x}{5} - \frac{3x}{7} )$

Hope it helps you

@MSD