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Write the solution set of the equation ...

Write the solution set of the equation `x^2+ x - 2 = 0` in roster form.

A

`{-1,-2}`

B

`{1,2}`

C

`{1,-2}`

D

`{-1,2}`

Text Solution

Verified by Experts

The correct Answer is:
C
`x^2+x-2 = 0`
`=>x^2+2x-x-2 = 0`
`=>(x+2)(x-1)=0`
So, `x=-2 or x=1`
So, solution set will be `{1,-2}`.
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