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Solution for Verify Whether the Indicated Numbers Are Zeroes of the Polynomials Corresponding to Them in the Following Cases `F(X)=X^2- 1,X=1,-1` - CBSE Class 9 - Mathematics

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Question

Verify whether the indicated numbers are zeroes of the polynomials corresponding to them in the following cases

`f(x)=x^2- 1,x=1,-1`

Solution

`f(x)=x^2- 1,x=1,-1`

we have `f(x)x^2 -1`

put `x=`and  `x=-1`

`⇒ f(1)=(1)^2 -1`   and `f(-1)=(-1)^2-1`

`=1-1=0`                        `=1-1=0`

`∴=1,-1`are the roots of `f(x)=x^2-1`

  Is there an error in this question or solution?
Solution Verify Whether the Indicated Numbers Are Zeroes of the Polynomials Corresponding to Them in the Following Cases `F(X)=X^2- 1,X=1,-1` Concept: Zeroes of a Polynomial.
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