Question

(2√5-5)² +(3√2+√3)² -(√2-1)²​

Answer 1

Answer:

$( {2 \sqrt{5} - 5) }^{2} + ( {3 \sqrt{2} + \sqrt{3} ) }^{2} - ( { \sqrt{2} - 1)}^{2} \\ \\ \\ \\ = > 20 + 25 - 20 \sqrt{5} + 18 + 3 + 6 \sqrt{6} - (2 + 1 - 2 \sqrt{2} ) \\ \\ \\ = > 63 - 20 \sqrt{5} + 6 \sqrt{6} + 2 \sqrt{2} \\ \\ \\ \\ = > > 63 - 20 \times (2.23) + 6 \times 2.44 + 2 \times 1.41 \\ \\ \\ = > 63 - 44.6 + 14 .64 + 2.82 \\ \\ \\ = > 80.46 - 44.6 = > 35.86$

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