Posted by **Anonymous** on Saturday, January 24, 2009 at 2:04pm.

Evaluate [(26 + 37)/121]^(3/2)

= [(2√27)^3 + (2√36)^3] / [(2√121)^3]

= [(2√27)^3 + 6] / 1331

and now... I don't know what to do...

the answer is (189/1331)(√7)... BUT I don't know how to get this! Please help me! Thanks.

- Math - Exponential -
**Reiny**, Saturday, January 24, 2009 at 4:36pm
[(26 + 37)/121]^(3/2)

= [63/121]^(3/2)

= [9*7)^(3/2) / 1331

= [27*√7*√7*√7]/1331

= 27*7*√7/1331

= 189√7/1331

- Math - Exponential -
**Anonymous**, Saturday, January 24, 2009 at 4:44pm
I get what you did up until...

= [27*√7*√7*√7]/1331

Why is it √7 three times instead of √27??? I also don't get why 27 isn't √27...

## Answer This Question

## Related Questions

- Math - Find an equation of the line that bisects the obtuse angles formed by the...
- 8th grade algebra - Can you check my answers? 1. 3√20/√4 = 3√(...
- Algebra - 1. Simplify the expression: 4√18+5√32 A.45√2 B.32&#...
- Algebra - Check My Work - For Question 1-8 Simplify the Radical Expression...
- Algebra - How would i complete these problems? 1. (√6mn)^5 2. ^3√16x...
- maths - I will be thankfull to you if you help me to solve the below problem: 6...
- Algebra - Simplify the expressions and solve the equations 1. 2√3 - √...
- Algebra 2 Answer Check - Simplify by rationalizing each denominator. 1. 2/√...
- Algebra Work Check - 1. 5√6 * 1/6√216 5/6 * √1296 5/6 * √...
- Algebra 2 - Can someone help me with this radical expression please? The problem...

More Related Questions