Lauren W.

asked • 03/30/17

4 sqrt (7) + sqrt (63) - 2 sqrt (28)

4 sqrt (7) + sqrt (63) - 2 sqrt (28)

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Cristina S. answered • 03/30/17

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4 √7+√(3²*7)-2√(2²*7)=(4+3-4)√7=3√7
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Beth H.

thanks for working with me on this.  (I got you going on your original answer of 11sqrt(7) and you got me on my 4+3-4 =5!!!  :-). Maybe between the two of us we'll get it right, eh? (It's been a long day to say the least). Have a great day tomorrow.
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03/30/17

Cristina S.

LOL
 
Yes, I got a good laugh on that one, you got me and I got you back:)  the writing is so small when we type and we are both wearing glasses!  Not the best eyes for sure :)
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03/30/17

Beth H.

:-).  (Keep checking me...  I tend to do what I tell my students not to do "...(don't) rush to get it done!!!")
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03/31/17

Cristina S.

Ok, I'll keep checking you, but you have to check me, first :)  Have a lovely day with your boys (I've got 2 boys and 2 girls) :)  Thanks for a good laugh :)
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03/31/17

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