Question

(2m-5n+3l)² - (2m+5n-3l)²​

Answer 1

To find :-

$\large \fcolorbox{black}{cyn}{(2m-5n+3l)² - (2m+5n-3l)²}$

Formula used :-

$\large\bold\red{ {x}^{2} - {y}^{2} = (x + y)(x - y)}$

Solution :-

$\large\bold\red{(2m-5n+3l)² - (2m+5n-3l)²}$

$\large\bold\red{ = (2m - 5n + 3l - 2m - 5n + 3l)(2m - 5n + 3l + 2m + 5n - 3l)}$

$\large\bold\red{ = (6l - 10n)(4m)}$

$\large\bold\red{ = 24lm - 40mn}$

$\huge \fcolorbox{black}{cyn}{♛Hope it helps U♛}$