QUESTION IMAGE
Question
simplify.
\sqrt{32v^{16}}
assume that
Step1: 分解被开方数
将\(32v^{16}\)分解为完全平方数和其他数的乘积,\(32 = 16\times2\),\(v^{16}=(v^{8})^{2}\),所以\(\sqrt{32v^{16}}=\sqrt{16\times2\times(v^{8})^{2}}\)。
Step2: 利用根式性质化简
根据根式的性质\(\sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\)(\(a\geq0,b\geq0\))和\(\sqrt{a^{2}} = a\)(\(a\geq0\)),可得:
\(\sqrt{16\times2\times(v^{8})^{2}}=\sqrt{16}\times\sqrt{(v^{8})^{2}}\times\sqrt{2}\)
\(= 4\times v^{8}\times\sqrt{2}\)
\(= 4\sqrt{2}v^{8}\)
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\(4\sqrt{2}v^{8}\)