Hi, Mondrea.

to simplify a radical, we break it up into perfect squares. For variables, even exponents are perfect squares.

448 = 64 * 7

x

^{8}is a squarey

^{19}= y^{18}* ySo, we have √64 * √7 * √x

^{8}* √y^{18}* √y= 8 * √7 * x

^{4}* y^{9}* √y= 8x

^{4}y^{9}√7yHope that helps!

Kathye P.

BTW, on large numbers, you can also break them down a little at a time, if that helps.

For example, 448 = 4 * 4 * 4 * 7

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