Math Ms Sue check

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How do you do these questions, I have all my steps done until the last one:

2x(2x)^2: 2x(4x^2)?
Now do I multiply or add the big numbers?
also Im having trouble on these:
1. x^2(xy)^3: x2(x^3y^3)
2. 3x^2(2x)^3: 3x^2 (8x^3)
3. -2x^2y(3xy^2)^2
4. -(3x)^2: -(9x^2)?
5. 5x(2x^2)^2
6. -3x^2y(xy)^3
7. 2xy^2(3x^2y)^3
Everything is done but the last step, please help, thanks

  • I don't know -

    Sorry.

  • Math Ms Sue check -

    Oh no, this is due tomorrow and I have a huge test on this concept tomorrow... But it's ok...

  • Math Ms Sue check -

    Do you know anyone else who can help?

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