medium · GMAT Quant
A financial risk model computes an operational impact metric f(x) = 5x^4 - 3x^2 + 7x. The model decomposes f(x) into an even component E(x) = dfracf(x) + f(-x)2 and an odd component O(x) = dfracf(x) - f(-x)2.
What is the value of E(2) + O(-2)?
- 82
- 54
- 68
- -14
- 122
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