Question

Q.5. The value of (3+√3)(3-√3) 2 points
is: *
O O
0
O 6
O
9
O 3​

Answer 1

$\huge\tt\colorbox{violet}{Answer}$

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

$it \: is \: in \: the \: form \: of \: \\ (a + b)(a - b) = {a}^{2} - {b}^{2}$

$a = 3 \\ b = \sqrt{3}$

$(3 + \sqrt{3} )(3 - \sqrt{3} ) \\ = {(3)}^{2} - { (\sqrt{3} )}^{2} \\ = 9 - 3 \\ = 6$

$6 \: \: is \: the \: correct \: answer$

Answer 2

$\huge\mathcal\orange{AnSwEr:}$

$\small{ }$

$\large\bf\color{navy}{To~find~the~value~of:}$

$\sf{~~~~~~~~~~~~~(3+{\sqrt{3}})(3-{\sqrt{3}})}$

$\bf{Identity~to~be~used:}$

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

$\sf{ = \implies (3+{\sqrt{3}})(3-{\sqrt{3}})}$

$\sf{ = \implies (3)^{2}-({\sqrt{3}})^{2}}$

$\sf{ = \implies 9-3}$

$\sf{ = \implies {\underline{\boxed{\sf~6~}}}}$

$\small{ }$

$\huge\sf\orange{Hope~it~helps..!!}$