Question

If f(x) = 3x⁴ - 5x² + 7 find f(x - 1)

Answer 1

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Answer 2

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Here is your answer.
f(x-1)=0
x -1 = 0
x =1
So
f(x ) = f(1)=
$= 3(1) {}^{4} - 5(1) {}^{2} + 7 \\ \\ = 3 - 5 + 7 \\ \\ = 10 - 5 \\ \\ = 5$
Therefore f(1) = 5


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