Question

Simplify ( 4 + root 5) ( root 3 - root 7)

Answer 1

Answer:

$\huge{\fbox{\fbox{\bigstar{\mathfrak{\red{Answer}}}}}}$

Step-by-step explanation:

$(4 + \sqrt{5} ) \times ( \sqrt{3} - \sqrt{7} )$

$4 \sqrt{3} + \sqrt{15} - 4 \sqrt{7} - \sqrt{35}$

$6.92+ 3.87 - 10.58 - 5.91 \\ = 10.79 - 16.49 \\ = - 5.7$

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Answer 2

$\huge{\underline{\red{\mathfrak{AnSwEr}}}}$

$(4 + \sqrt{5} ) \times ( \sqrt{3} - \sqrt{7} ) \\ = 4 \sqrt{3} + \sqrt{15} - 4\sqrt{7} - \sqrt{35} \\ = 6.92 + 3.87 - 10.58 - 5.91 \\ = 10.79 - 16.49 \\ = - 5.7$