计算 √16+³√-64-(π-√3)º+(√2)²求x的值 (2x+1)²=9,
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计算 √16+³√-64-(π-√3)º+(√2)²求x的值 (2x+1)²=9,
计算 √16+³√-64-(π-√3)º+(√2)²
求x的值 (2x+1)²=9,
计算 √16+³√-64-(π-√3)º+(√2)²求x的值 (2x+1)²=9,
原式=4+(-4)-1+2
=4-4-1+2
=1
2x+1=±3
2x=-4,2x=2
x=-2,x=1
原式
=4-4-1+2
=1
(2x+1)²=9
2x+1=3或2x+1=-3
2x=3-1或2x=-3-1
x=1或x=-2