Question

(-2 - √3)(-2+√3) =__________.​

Answer 1

Answer:

1

Step-by-step explanation:

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

(-2-√3)(-2+√3)=(-2)^2-(√3^2)

=4-3

=1

Hope it helps!!

Answer 2

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${\huge{\underline{\underline{\sf{\pink{Solution:-}}}}}}$

$➡ \: (x - y)(x + y) = {x}^{2} - {y}^{2}$

$➡ \: ( - 2 - \sqrt{3})( - 2 + \sqrt{3}) = ({ - 2})^{2} - (\sqrt{3} ) ^{2}$

$➡ \: 4 - 3$

$➡ 1$

${\large{\underline{\underline{\sf{\red{Answer:-}}}}}}$

$( - 2 - \sqrt{3})( - 2 + \sqrt{3}) = 1$

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