Question

simplifique as expressões:
c)2√7-8√3+6√7-2√3

Answer 1

$2 \sqrt{7} - 8 \sqrt{3} +6 \sqrt{7} - 2 \sqrt{3} = 2 \sqrt{7} + 6 \sqrt{7} - 8 \sqrt{3} -2 \sqrt{3} = (2+6) \sqrt{7} +(-8-2) \sqrt{3} = 8 \sqrt{7} -10 \sqrt{3}$