Posted by **Bretagne** on Sunday, February 17, 2008 at 4:10pm.

How would i complete these problems?

1. (√6mn)^5

2. ^3√16x - ^3√2x^4

3.^4√x • ^3√2x

4. ^3√72x^8

5. √63a^5b • √27a^6b^4

and are these problems correct?

6. √2025xy/3√3 = 15√xy/√3

7. 3√18 + 8√50 = 49√2

8. √12 • √135 = 18√5

- Algebra -
**Guido**, Sunday, February 17, 2008 at 6:21pm
The way you typed your questions is not clear. Please use proper keyboard symbols.

- Algebra -
**Damon**, Sunday, February 17, 2008 at 6:30pm
6, 7 and 8 are correct.

easier to write sqrt as fractional power for these

like sqrt (x) = x^(1/2)

1.

{(6 n m )^.5}^5 = (6 m n)^(5/2)

= (6 m n)^4/2 * (6 m n)^1/2

= 36 m^2 n^2 sqrt(6 m n)

2.

(16x)^1/3) - (2x^4)^1/3 = 2 (2)^1/3 (x)^1/3 - 2^1/3 x^4/3

= 2^1/3 x^1/3( 2 - x)

3.

x^1/4 2^1/3 x^1/3

= 2^1/3 x^7/12

4.

72^1/3 x^8/3

(2^3 * 3^2)^1/3 x^8/3

2 (9)^1/3 x^8/3

5.

(3*3*7 *a^5 * b^1 *3^3 * a^6* b^4)^1/2

= (3^5 a^11 b^5)^1/2

= 9 a^5 b^2 (3 a b)^1/2

## Answer This Question

## Related Questions

- 8th grade algebra - Can you check my answers? 1. 3√20/√4 = 3√(...
- Math - Find an equation of the line that bisects the obtuse angles formed by the...
- 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 Work Check - 1. 5√6 * 1/6√216 5/6 * √1296 5/6 * √...
- maths - I will be thankfull to you if you help me to solve the below problem: 6...
- Algebra 2 Answer Check - Simplify by rationalizing each denominator. 1. 2/√...
- Algebra 2 - Can someone help me with this radical expression please? The problem...
- Math - find the value of k in simplest form for which the larger root of x^2-5x+...
- Algebra - Simplify the expressions and solve the equations 1. 2√3 - √...

More Related Questions