Question

check whether root 3 and 2 are zeroes of x³-3x+2​

Answer 1

Answer:

To find the zeroes of the given polynomial x

3

−3x

2

−x+3, we equate it to zero as shown below:

x

3

−3x

2

−x+3=0

⇒x

2

(x−3)−1(x−3)=0

⇒(x

2

−1)(x−3)=0

⇒(x+1)(x−1)(x−3)=0(∵a

2

−b

2

=(a+b)(a−b))

⇒(x+1)=0,(x−1)=0,(x−3)=0

⇒x=−1,x=1,x=3

Hence, the zeroes of the polynomial x

3

−3x

2

−x+3 are −1,1,3.

Answer 2

sorry I don't no ok then Bye