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
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
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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