If , what is ?
Answer and explanation
Correct answer: D. 2
- Step 1: Substitute into : .
- Step 2: Compute the terms: so , and .
- Step 3: Combine: .
Answer
.
Why not the others: - -10 evaluates at with sign errors. - 4 makes a sign inversion or omitted term. - 32 adds the linear term ().
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