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Math correct

posted by on .

AM I RIGHT??

simplify
(2x^2y^2z)^2(x^4y)^5

I CAME WITH 4x^13y^9z^2 FOR THE ANSWER..

convert the number to scientifc notation
13,550,000,000

I CAME WITH 1.355x10^9 FOR THE ANSWER

  • Math correct - ,

    On the second, no. try 10^10. Think about that.

    Now on the first, no.
    expand the first part:
    2x^2y^2z^2 squared
    4x^4 y^4 z^4
    Now the second part.
    x^4 y to the fifth..
    x^20 y^5

    Now combine them by adding exponents.

  • Math correct - ,

    okay. is it 4x^36y^20z^2

  • Math correct - ,

    No. You are missing something.

    the two to combine are:
    (4x^4 y^4 z^4)(x^20 y^5)

    Take the y exponents. What is 4+5?

    When multiplying add the exponents. When taking to a power, multiply.

    x3 * xk=x3+k

    (xm)n =xmn

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