Saved Bookmarks
| 1. |
P ( x ) = 2 x ^ { 3 } - 5 x ^ { 2 } - 14 x + 8 |
|
Answer» 2x³ - 5x² - 14x + 8 = 0put x = -2 we get 0 hence x = -2 is a root of the given equation2x²(x+2) -9x(x+2) +4(x+2) = 0(x + 2)(2x² -9x +4) = 0(x + 2)(2x² -8x - x + 4) = 0(x +2){2x(x-4) -1(x-4)} = 0(x+2)(x-4)(2x-1) =0x = -2, 4, 1/2 |
|