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March 25, 2017

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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 - ,

    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

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