Saved Bookmarks
| 1. |
Write a second degree polynomial p(x) in which \(p(\sqrt{2}+1)=p(\sqrt{2}-1)=0\) |
|
Answer» If \(p(\sqrt{2}+1)=0\), then x\(-(\sqrt{2}+1)\) is a factor. If \(p(\sqrt{2}-1)=0\), then x\(-(\sqrt{2}-1)\) is a factor. p(x) = [x-(√2+1)][x-(√2-1)] = [x-(√2-1)][x-(√2+1)] = (x-√2)2 - 1 = x2 - 2√2 x+2-1 = x2-2√2x+1 |
|