Question
Add or subtract terms whenever possible.$\sqrt{63 x}-\sqrt{28 x}$
Step 1
We can rewrite $\sqrt{63x}$ and $\sqrt{28x}$ as $\sqrt{9*7x}$ and $\sqrt{4*7x}$ respectively, because 63 is 9 times 7 and 28 is 4 times 7. Show more…
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