Question

Rezultatul calculului 2x(5+√18)-3(2+√8) este.....

Answer 1

$2(5+ \sqrt{18} )-3(2+ \sqrt{8} )=2(5+3 \sqrt{2} )-3(2+2 \sqrt{2} )= \\ =10+6 \sqrt{2} -6-6 \sqrt{2} =10-6=4$

Answer 2

2(5+3√2)-3(2+2√2)=
10+6√2-6-6√2=
10-6=4