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zloy xaker [14]
3 years ago
12

Anyone a math Genius? simplify each radical expression. -21_/27x^9

Mathematics
1 answer:
LenKa [72]3 years ago
8 0
Ok so according to comments, question is
-21\sqrt{27x^{9}}
remember that
\sqrt{xy}=\sqrt{x} times \sqrt{y}
and \sqrt{yx^{2}}=x\sqrt{y}
so
-21\sqrt{27x^{9}}=-21\sqrt{27}\sqrt{x^{9}} = -21\sqrt{9}\sqrt{3}\sqrt{x^{2}}\sqrt{x^{2}}\sqrt{x^{2}}\sqrt{x^{2}}\sqrt{x}= -21(3)\sqrt{3}(x)(x)(x)(x)\sqrt{x}=
-63x^{4}\sqrt{3}\sqrt{x}=-63x^{4}\sqrt{3x}
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