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OpenStudy (anonymous):
If f(x) = 2x2 - x, find f(-3).
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OpenStudy (fibonaccichick666):
what do you think you need to do?
OpenStudy (anonymous):
I have no idea.
OpenStudy (fibonaccichick666):
ok, so have you heard the word substitute yet?
OpenStudy (anonymous):
Yes.
OpenStudy (fibonaccichick666):
ok, so if I said substitute -3 for x, would you know what to do?
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