## (sqrt2+1)(3sqrt2+1)=? (please explain how to do these)

Quadratic equations and inequalities, variation equations, function notation, systems of equations, etc.
JamesBriggs2011
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Joined: Sun Jul 03, 2011 10:42 pm
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### (sqrt2+1)(3sqrt2+1)=? (please explain how to do these)

i need to check on my homework??? if someone can explain how to do these it would be appreciated

(sqrt2+1)(3sqrt2+1)=?
sqrt6(sqrt5-sqrt7)=?
sqrt(x+10)=-9 x=? or is there no solution?
(sqr(6mn))to the ninth, rewrite with rqtional exponents
sqrt(9x^)=?
(sqrt3-sqrt8)(sqrt3+sqrt8)=?
9sqrt75-6sqrt3=?

maggiemagnet
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Joined: Mon Dec 08, 2008 12:32 am
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### Re: (sqrt2+1)(3sqrt2+1)=? (please explain how to do these)

if someone can explain how to do these it would be appreciated
That's what the Purplemath lessons are for!
(sqrt3-sqrt8)(sqrt3+sqrt8)=?
9sqrt75-6sqrt3=?
(sqrt2+1)(3sqrt2+1)=?
sqrt6(sqrt5-sqrt7)=?
To learn how to simplify added and multiplied square-root expressions like these, try this lesson.
sqrt(x+10)=-9 x=? or is there no solution?
To learn how to solve radical equations, try this lesson.
(sqr(6mn))to the ninth, rewrite with rqtional exponents
sqrt(9x^)=?