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.如果某数的一个平方根是-6,那么这个数为()。-九年级数学
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16的平方根是______.-数学
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下列说法:①2是4的一个平方根;②16的平方根是4;③-36的平方根是±6;④-8是64的一个平方根.其中正确的个数是()A.1B.2C.3D.4-数学
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如果一个数的平方根是±3,那么这个数是______.-数学
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已知x=a+bM是M的立方根,y=3b-6是x的相反数,且M=3a-7,那么x的平方根是______.-数学
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8l的平方根为______.-数学
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题目简介
16的平方根是______.-数学
题目详情
答案
∴16的平方根是±4.