If , what is ?
Answer and explanation
Correct answer: C. 34
- Step 1: Substitute into : .
- Step 2: Compute each term: so , and .
- Step 3: Combine: .
Answer
.
Why not the others: - 28 makes a sign miscalculation on the linear term, treating as (). - -2 evaluates only constant and linear terms. - 37 makes a sign inversion or omitted term adding .
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