If , what is ?
Answer and explanation
Correct answer: B. 18
- 66 evaluates .
- 22 adds .
- 10 computes , omitting the square.
- 22 adds .
- 10 computes , omitting the square.
- Step 1: Substitute into : .
- Step 2: Compute , then multiply by : .
- Step 3: Add : .
Answer
.
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