Question

2. Calculati:
a) v32 – 2 V8 + 5V2 – 2(V2 + V8);
va rog repede​

Answer 1

$4 \sqrt{2} - 2 \sqrt{2} + 5 \sqrt{2 } - 2 \sqrt{2} + 4 \sqrt{2}$

$= 9 \sqrt{2}$