Question

find zeroes of xcube+2xsquare-3x​

Answer 1

Answer:

1,−1,−2.

Step-by-step explanation:

The polynomial x

3

+2x

2

−x−2=0 can be factorised as follows:

x

3

+2x

2

−x−2=0

⟹x

2

(x+2)−1(x+2)=0

⟹(x

2

−1)(x+2)=0

⟹ x

2

−1=0 or x+2=0

⟹ x

2

=1 or x=−2

x=1, x=−1 and x=−2

Hence, the zeroes of the polynomial x

3

+2x

2

−x−2=0 are 1,−1,−2.

Answer 2

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• The Zero of polynomual is 6