Question

Calculati:
a)
$3 - 2 \sqrt{2} + 5 \sqrt{2 } - 3$
b)
$2 \sqrt{2} - 3 \sqrt{3} + 8 \sqrt{3} - 4 \sqrt{2}$
c)
$2 + 3 \sqrt{5} - 3 - 2 \sqrt{5}$
d)
$\sqrt{2} + 4 \sqrt{2} - 2 \sqrt{5} - 3 \sqrt{5}$
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Answer 1

spee ca i ok si ca intelegi ce am facut