Question

which of the following quadratic equations have roots 2,-1
1.)x^2+x+2=0
2.)x^2-x-2=0
3.)x^2+2x-2=0
4.)x^2-2x+2=0​

Answer 1

Answer:

x^2-x-2

x^2-2x+x-2

x(x-2)+1(x-2)

(x-2)(x+1)

x=2,x=-1

Answer 2

Step-by-step explanation:

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