find the quotient and remainder when x³- 2x²-3 is divided by x-3
Answers
Answered by
4
Step-by-step explanation:
For finding the remainder, we need to use remainder theorem.
let p(x)=x
3
−2x
2
+x+1
Hence, to find the remainder on dividing by x−1, we need to equate it to 0 and put that value of x in p(x).
⇒x−1=0
⇒x=1
p(1)=1
3
−2×1
2
+1+1
p(1)=1
Hope this help you
Answered by
39
How to find it ?
- Doing it by the long division method
______________________
x-3 ) x^3 -2x^2 - 3 ( x^2 + X + 3
x^3 - 3x^2
___(-)___(+)______
x^2 - 3
x^2 - 3x
_____(-)__(+)_______
3x - 3
3x - 9
__________(-)__(+)____
6
_______________________
Thus , remainder is 6 and the quotient is x^2 +X+3 .
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