Question

simplify (root27-ropt3)(root27+root3)​

Answer 1

"

$\huge \tt \blue{24}$

Step-by-step explanation:

(√27 - √3) (√27 + √3)

=> (√27)² - (√3)²

[using the formula (a-b)(a+b) = a² - b²]

=> 27 - 3

=> 24

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hope it helps.

Answer 2

$(\sqrt{27} - \sqrt{3} )( \sqrt{27} + \sqrt{3} )$

Formula to be used :

(a - b) (a + b) = a² - b²

Solution :

$( { \sqrt{27} )}^{2} - {( \sqrt{3} )}^{2} \\ = 27 - 3 \\ = 24$