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Montano1993 [528]
3 years ago
10

Why in these types of questions(the image) I need to multiply the dominator by itself and by the nominator. and why I can't just

multiply it just by itself.

Mathematics
1 answer:
Lana71 [14]3 years ago
3 0

Answer:

\frac{\sqrt{5x^{2} } }{\sqrt{3x^{3} } } =\sqrt{\frac{5}{3x} }

Step-by-step explanation:

Simply because

A=\frac{5}{3} = \frac{5}{3}*\frac{3}{3}  = \frac{15}{9} =\frac{5}{3}

So its value remains Constant , It's simply as if you're multiplying by 1 which doesn't change anything at all

but when doing this

A=\frac{5}{3} = \frac{5}{3}*\frac{5}{3}  = \frac{25}{9} \neq \frac{5}{3}\\

You changed its value

A now became A^{2}

Hope you understand it

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