# SOLUTION: this problem is not from my book. We are working in rational expressions and equations. 20^1/2 + 5^1/2 = sqt rt 20 + sqt rt 5 Any help would be appreciated. Thank you.

Algebra ->  Algebra  -> Polynomials-and-rational-expressions -> SOLUTION: this problem is not from my book. We are working in rational expressions and equations. 20^1/2 + 5^1/2 = sqt rt 20 + sqt rt 5 Any help would be appreciated. Thank you.       Log On

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 Algebra: Polynomials, rational expressions and equations Solvers Lessons Answers archive Quiz In Depth

 Question 141522: this problem is not from my book. We are working in rational expressions and equations. 20^1/2 + 5^1/2 = sqt rt 20 + sqt rt 5 Any help would be appreciated. Thank you. AnneFound 2 solutions by checkley77, ankor@dixie-net.com:Answer by checkley77(12569)   (Show Source): You can put this solution on YOUR website!20^1/2 + 5^1/2 = sqt rt 20 + sqt rt 5 20^1/2=sqrt20 5^1/2=sqrt5 so we have an equality: sqrt20+sqrt5=sqrt20+sqrt5 4.472+2.236=4.472+2.236 6.708=6.708 Answer by ankor@dixie-net.com(15638)   (Show Source): You can put this solution on YOUR website!20^1/2 + 5^1/2 = sqt rt 20 + sqt rt 5 : you should recall that a number raised to exponent of 1/2 is the same as the square-root of that number, so basically you have: : Factor 20, to reveal a perfect square (4) Extract the square root of that perfect square Like terms: