Question

evaluate using suitable identity
$75 \times 65$
​

Answer 1

Answer:

$75 \times 65$

$= ( 70 + 5)(70 - 5)$

Note :-

$(a - b)(a + b) = {a}^{2} - {b}^{2}$

Hence,

$(70 + 5)(70 - 5)$

$= {70}^{2} - {5}^{2}$

$= 4900 - 25$

$= 4875$

Answer 2

Answer:

$<marquee> pls follow me and mark as brainliest$

$\sf\red{75 \times 65} \\ = > \sf\blue{(70 + 5)(70 - 5)} \\ = > \sf\pink{ {70}^{2} - {5}^{2} } \\ = > \sf\purple{4900 - 25} \\ = > \sf\green{4875}$

$\small\boxed{ \fcolorbox{red}{lime}{hope \: it \: help \: you}}$

$\small\boxed { \fcolorbox{blue}{purple}{pls \: mark \: as \: brainlist}}$