Question

$(4 + \sqrt{ 3)} (4 - \sqrt{3} )$
solve it
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Answer 1

Good morning ☀️❇️

Solution⬇️

$\tt \dashrightarrow(4 + \sqrt{ 3)} (4 - \sqrt{3} ) \\ \\ \: \: \: \: \: \: \: \: \: \tt \implies{4}^{2} - ({ \sqrt{3}) }^{2} \: \: \: \: \: \green{\bigg[(x - y)(x + y) = {x}^{2} - {y}^{2} \bigg ]} \\ \\ \tt \implies \: 16 - 3 \\ \\ \therefore \tt \red {13} \: \: \: \: \blue{ [Ans]}$

Note -

• √3 × √3 = √9 = 3

More formulas -

• (a+b)² = a² + b² + 2ab
• (a-b)² = a² + b² - 2ab
• (a-b)(a+b) = a² - b²
• (a+b+c)² = a² + b² + c² + 2ab + 2bc + 2ca
• (a+b)³ = a³ + b³ + 3ab(a+b)

Hope this helps you :)✳️♥️