Question

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

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$(4 - \sqrt{3} )(4 + \sqrt{3} ) \\ \\ by \: using \: the \: identity \: \: (x + y)(x - y) = x {}^{2} - y {}^{2} .. \\ \\ (4) {}^{2} - ( \sqrt{3} ) {}^{2} \\ = 16 - 3 \\ = 13$

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Answer 2

Step-by-step explanation:

it is in the form of (a + b) (a - b) = a² - b²

here a = 4 and b = √3

( 4 - √3) ( 4 + √3)

= 4² - (√3)²

= 16 - 3

= 13

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