Posted by **jj86** on Wednesday, February 4, 2009 at 3:29pm.

A couple of extra practice questions I can't remember how to do. Can anyone help?

1. "2*squareroot*5(3*squareroot*7 + 8*squareroot*12)"

I simplified down to 6*squareroot*35 + 2*squareroot*15, but now I am stuck!

2. "The sum of a number and the square of that number is 30. What is the number?"

Is the number 900?

Thanks for any help!

- math 11 review -
**Mr. L.**, Wednesday, February 4, 2009 at 4:39pm
Ok

for number one i can't follow your logic, but you have to solve the problem in the brackets before using outside information.

For number 2... The equation would be written like this

n + n squared = 30

therefore what numbers can you square that are below 30?

Work backwards

put in values for n

1,2,3 etc. until you can add the same number and then get thirty

## Answer This Question

## Related Questions

- Algebra - I need some help figuring these. Compute each product and simplify ...
- Algebra - I need some help figuring these. Compute each product and simplify the...
- math - Classify each statement as sometimes, always, or never true. A. 2^(2/3)*4...
- algebra - ^5 squareroot of x^20 *my answer x^4 ^3 squareroot of 729/343 my ...
- calculus - write the expression in the form bi, where b is the real number ...
- Algebra - I am not too sure about this problem. Can you please help me? Graph ...
- Geometry - Determine whether the triple of numbers can be the sides of a right ...
- Algebra2 - Simplify: 1.SquareRoot(-144) 2.SquareRoot(-64x^4) 3.SquareRoot(-13)*...
- math - solve the equation 1. squareroot of 2x+1+4=3 2.x= squareroot of 12-x 3....
- algebra - ^440 squareroot (a+b)^440 my answer: |a+b| add. squareroot 7a + 4 ...

More Related Questions