Ava V.
asked • 12/13/17(square room of x + the square root of 7) (square root of x - square root of 7)
foil type problem with square root equation.
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1 Expert Answer
Mark M. answered • 12/13/17
Tutor
5.0
(278)
Mathematics Teacher - NCLB Highly Qualified
(√x + √7)(√x - √7) (Difference of Squares Formula!)
x + √7x - √7x√ - 7
x - 7
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Mark M.
12/13/17