If , what is ?
Answer and explanation
Correct answer: B. 46
- Step 1: Substitute into : .
- Step 2: Compute the terms: so , and .
- Step 3: Add the terms: .
Answer
.
Why not the others: - 48 evaluates with an addition miscalculation. - 30 evaluates , subtracting the middle term. - 22 adds rather than subtracts the constant term in the final step.
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