Question

(radical245-2radical3)×(radical147)+3radical8×5radical72)+6radical128​

Answer 1

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$= (7 \sqrt{5} - 2 \sqrt{3} ) \times 7 \sqrt{3} + (3 \times 2 \sqrt{2} \times 5 \times 6 \sqrt{2} ) + 48 \sqrt{2 } = 49 \sqrt{15} - 42 + (3 \times 2 \times 2 \times 5 \times 6) + 48 \sqrt{2} = 49 \sqrt{15} - 45 + 360 + 48 \sqrt{2} = 49 \sqrt{15} + 318 + 48 \sqrt{2}$

Answer 2

Răspuns:

$( \sqrt{245} - 2 \sqrt{3} ) \times ( \sqrt{147} + 3 \sqrt{8} \times 5 \sqrt{72} ) + 6 \sqrt{128} = (7 \sqrt{5} - 2 \sqrt{3} ) \times (7 \sqrt{3} + 3 \times 2 \sqrt{2} \times 5 \times 6 \sqrt{2} ) + 48 \sqrt{2} = (7 \sqrt{5} - 2 \sqrt{3)} \times (7 \sqrt{3} + 3 \times 2 \times 2 \times 5 \times 6) + 48 \sqrt{2} = (7 \sqrt{5} - 2 \sqrt{3} ) \times (7 \sqrt{3 } + 360) + 48 \sqrt{2} = 49 \sqrt{15} + 2520 \sqrt{2} - 42 - 720 \sqrt{3} + 48 \sqrt{2}$

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