Which term of (x + 2)^8 is independent of x?
Correct answer: D. Last
- A. First
- B. Second
- C. Middle
- D. Last
Explanation
The expansion of (x + 2)^8 can be written as:(x + 2)^8 = x^8 + 8x^7(2) + 28x^6(2)^2 + 56x^5(2)^3 + 70x^4(2)^4 + 56x^3(2)^5 + 28x^2(2)^6 + 8x(2)^7 + (2)^8The last term, (2)^8, is independent of x, as it does not contain any variable x.
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