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OpenStudy (anonymous):
If f(x)= 2x 2 + 3, then f(x - 1)= 2x 2 + 4x + 5. how is this true
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OpenStudy (kainui):
Everywhere you see "x" in f(x) you replace with "x-1" to find f(x-1).\[f(x)=2x^2+3\]\[f(x-1)=2(x-1)^2+3\] see? Now you just multiply the polynomial out.
OpenStudy (kainui):
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OpenStudy (anonymous):
it was copied correctly
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