SOLUTION: 7 + square root 5 over 3 + square root 5 = ?
...is the answer 4 - square root 5?
Algebra.Com
Question 194079This question is from textbook Saxon Algebra 2
: 7 + square root 5 over 3 + square root 5 = ?
...is the answer 4 - square root 5?
This question is from textbook Saxon Algebra 2
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
7 + square root 5 over 3 + square root 5 = ?
----------------
(7+sqrt(5))/(3+sqrt(5))
------
Multiply numerator and denominator by (3-sqrt(5)) to get:
[(7+sqrt(5)(3-sqrt(5))]/(9-5)
---
= (21-5-4sqrt(5))/4
---
= 4 - sqrt(5)
===================
You are correct.
===================
Cheers,
Stan H.
RELATED QUESTIONS
5 + square root 3 over 7-2 square root... (answered by stanbon,solver91311)
Multiply
square root 7 (square root 5 - square root... (answered by dabanfield)
Multiply
square root 7 (square root 5 - square root... (answered by stanbon)
square root 2 - 5 square root 3 + 7 square root 2 + 9 square root... (answered by Mathtut)
simplify:
3 square root b^2 divided by 4 square root b^3
a. 1 over 12 square... (answered by checkley77)
rationalize the denominator + simplify
Square root of 7 over square root of 3 +... (answered by vleith)
(4*square root of 5)+(7*square root of... (answered by JP)
Thank you for allowing me to ask a question. My instructions say:
Simplify {{{4... (answered by stanbon)
Square root of 6 * square root of 5 * square root of 4 * square root of 3 * square root... (answered by rothauserc)