## anonymous 5 years ago Express as a Monomial in terms of I ??? HOW TO DO PLEASE :O

1. anonymous

do you mean i? i = $\sqrt{-1}$

2. anonymous

i think so. it's:$8\sqrt{-36}-4\sqrt{-49}$

3. anonymous

ok, so that's $8\sqrt{36}\sqrt{-1} - 4\sqrt{49}\sqrt{-1}=(8\times6\times i) - (4\times7\times i)=48i -35i=13i$

4. anonymous

oops should be 48i - 28i = 20i

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