Question

factories it
49x²-16y²​

Answer 1

$49 {x}^{2} - 16 {y}^{2} \\ 49 {x}^{2} = 16 {y}^{2} \\ { \sqrt{7x} }^{2} = { \sqrt{4y} }^{2} \\ 7x = 4y$

hope this may help you dear