(3减根号2)²怎么解?
问题描述:
(3减根号2)²怎么解?
答
(3减根号2)²
=3²-2×3√2+(√2)²
=9-6√2+2
=11-6√2
(3减根号2)²怎么解?
(3减根号2)²
=3²-2×3√2+(√2)²
=9-6√2+2
=11-6√2