Question

please give me the answer please (x² -7) (x² +7).​

Answer 1

By using algebraic fomula

(a+b)² (a-b)² = a ² - b²

SO :-( x² - 7²)

Answer 2

$\huge \tt \pink{Question}$

$( {x}^{2} - 7)( {x}^{2} + 7)$

$\huge \tt \pink{Solution}$

$( {x}^{2} - 7)( {x}^{2} + 7)$

${({x}^{2} {)}^{2} - {7}^{2} }$

${x}^{4} - 49$

$\sf \star \: \red {Formula \: used} \: \star$

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