Question

simplify:(2-7) (2+7)​

Answer 1

$1.\: \: (2 - 7)(2 + 7) \\ formula = (x - y)(x + y) = {x}^{2} - {y}^{2} \\ {2}^{2} - {7}^{2} \\ 4 - 49 \\ - 45 \: \: \: answer....$

Answer 2

$\huge \mathfrak \purple{Answer -:}$

GIVEN :-

( 2 - 7 )( 2 + 7 )

TO FIND :-

Simplify

SOLUTION :-

( 2 - 7 )( 2 + 7 )

By Appropriate Identity,

( 2 - 7 )( 2 + 7 )

=> ( a - b )( a + b ) = a² - b²

=> ( 2 - 7 )( 2 + 7 ) = 2² - 7²

=> ( 2 - 7 )( 2 + 7 ) = 4 - 49

=> 45.