The radicals [tex]\sqrt{180}[/tex] and [tex]3\sqrt{20}[/tex] are equivalent.
What is radical?
A radical, or root, is the mathematical opposite of an exponent, in the same sense that addition is the opposite of subtraction.
Which option shows equivalent radical?
The value of [tex]\sqrt{54}[/tex] is [tex]3\sqrt{6}[/tex] which is not equivalent to [tex]9\sqrt{6}[/tex] .
The value of [tex]\sqrt{180}[/tex] is [tex]6\sqrt{5}[/tex].
The value of [tex]3\sqrt{20}[/tex] is [tex]6\sqrt{5}[/tex].
The radicals [tex]\sqrt{180}[/tex] and [tex]3\sqrt{20}[/tex] are equivalent.
Therefore, the correct option is b.
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