GRADE 9 ALGEBRA HELP!!!!
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GRADE 9 ALGEBRA HELP!!!!

[From: ] [author: ] [Date: 12-04-13] [Hit: ]
a^2 is a squared.are you sure its -5z to the third power?-After expansion,Since the second and third term will not cancel each other,When you add up all of the answers you get -5z^3+10z^2+25z.If you like this answer give confusinghomework.......
I know the answer is -5z to the power of 3 can some one show me how to expand and simplify it

-5z(z2-2z-5)


Please help ! The 2 after the "z" (z2) is "z" squared! :)

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-5z^3 +10z^2 + 25z


Powers can be expressed with the ^
a^2 is a squared.

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using the distributive property

(-5z)(z^2) + (-5z)(-2z) + (-5z)(-5)

-5z*z^2 + 10z*z + 25z

-5z^3 + 10z^2 + 25z

are you sure its -5z to the third power?

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After expansion, (^ means to the power of)
First term is -5z^3
Second term is +10z^2
Third term is +25z
Since the second and third term will not cancel each other, the answer is NOT -5Z^3

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first thing you need to do is multiply -5z*(z^2)=-z^3
then multiply (-5z)*(-2z)=10z^2
then multiply (-5z)*(-5)=25z

When you add up all of the answers you get -5z^3+10z^2+25z.

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-5z^3 + 10z^2 + 25z is the answer :)

-5z(z^2) + -5z(-2z) + -5z(-5)

If you like this answer give confusinghomework.com a look :) free online tutoring :)
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