2013 · Q3
Which one is one of the factors of x² + 1/x² + 8(x + 1/x) + 14?
Elementary MathematicsAlgebra
- Ax+1/x+1
- Bx+1/x+3
- Cx+1/x+6
- Dx+1/x+7
Explanation
Let t=x+1/x: t²+8t+12=(t+2)(t+6). Answer C.
Which one is one of the factors of x² + 1/x² + 8(x + 1/x) + 14?
Explanation
Let t=x+1/x: t²+8t+12=(t+2)(t+6). Answer C.