What must be subtracted from the polynomial x4 -4x 39x 2 -46x-2 resulting divisible by x2 -5 x+6
Answers
Solution:-
x² + x - 10
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x² - 5x +6 | x⁴ - 4x³ - 9x² - 46x -2
| x⁴ - 5x³ + 6x²
| - + -
|___________________
| x³ - 15x² - 46x -2
| x³ - 5x² + 6x
| - + -
|___________________
| - 10x² - 52x - 2
| - 10x² +50x - 60
| + - +
|____________________
| - 102x + 58 (Remainder)
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So, - 102x + 58 should be subtracted from x⁴ - 4x³ - 9x² - 46x - 2 to make it exactly divisible by x² - 5x +6.
x² + x - 10
____________________
x² - 5x +6 | x⁴ - 4x³ - 9x² - 46x -2
| x⁴ - 5x³ + 6x²
| - + -
|___________________
| x³ - 15x² - 46x -2
| x³ - 5x² + 6x
| - + -
|___________________
| - 10x² - 52x - 2
| - 10x² +50x - 60
| + - +
|____________________
| - 102x + 58 (Remainder)
______________________
So, - 102x + 58 should be subtracted from x⁴ - 4x³ - 9x² - 46x - 2 to make it exactly divisible by x² - 5x +6.
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