Question

Find all the zeros of polynomial x³+3x²-2x-6, if two zeros are -/2
and /2....!!!

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Answer 1

Answer: -3

Step-by-step explanation:

Since two zeroes are /2 and -/2

so (x+/2)(x-/2)= (x^2-2)

Dividing-:

x^3+3x^2-2x-6 by x^2-2

we get x+3

x= -3

zeroes of the given polynomial are /2,-/2 and-3

since cubic polynomial have three zeroes, hence verified.