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More Combining Like Terms

Alright...so now I teach some very useful properties...

Distributive Property: The number outside the parentheses gets multiplied by every number within

a(b + c) = ab + ac

a(b - c) = ab - ac

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In exponents:

a0 = 1

am * an = am + n

am / an = am-n

a-m = 1/am

Man, that's a lot of rules....I'm sorry if you want practice with any of this stuff, I can't really help you - I'm not good at making up those practice problems....

So...more with like terms.  Knowing what we know now....simplify:

x2(3x - 2) + 5

Ok...

Using the properties above...

x2(3x) + x2(-2) + 5

REMEMBER: If the term has no exponent, it is assumed to be a 1

3x3 - 2x2 + 5

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