SOLUTION: i have to express this equation as a fraction with a rational denominator.
(-10)/(6-sqrt 7)
Algebra.Com
Question 627131: i have to express this equation as a fraction with a rational denominator.
(-10)/(6-sqrt 7)
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Multiply the entire fraction by 1 in the form of the conjugate of the denominator divided by itself. The conjugate of a irrational number of the form 
is 
Note that the product of a pair of conjugates is the difference of two squares.
John
My calculator said it, I believe it, that settles it
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