# prealgebra

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Simplify: Can someone please help me with this and go through the steps for it please. Thank You

-8z(-9z^2-z-1)

• prealgebra -

A(B+C)
=AB+AC
and similarly
A(B+C+D)

Try:
4x(5x2+3x+2)
=4x*5x2 + 4x*3x + 4x*2
=20x3 + 12x2 + 8x

Can you try your problem now?

• prealgebra -

i still don't understand on how to do the problem

• prealgebra -

would the answer for the problem that i sent you be 72z^3-8z^2-1

• prealgebra -

You have to multiply -8z by all terms. Also remember that a negative times a negative equals a positive.

72z^3 + 8z^2 + 8z

I hope this helps a little more. Thanks for asking.

• prealgebra -

simplify:
Thank You
(2k+7)(7k-1)

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