√2-3的平方+(√2+1)(√2+5)
问题描述:
√2-3的平方+(√2+1)(√2+5)
答
原式=2-6√2+9+2+5√2+√2+5
=18
答
22
答
(√2-3)²+(√2+1)(√2+5)
=2-6√2+9+2+6√2+5
=4+14
=18