1 answer

How do you rationalize the denominator and simplify #7/(sqrtx+sqrty)#?

Question:

How do you rationalize the denominator and simplify #7/(sqrtx+sqrty)#?

Answers

#7(sqrtx-sqrty)/(x-y)#

Explanation:

Multiply both numerator and denominator by the conjugate of the denominator #sqrtx-sqrty# and use
#(a^2-b^2)=\(a-b)(a+b)#

.

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