Example 1 Write the solution set of the equation *2+ x-2 = 0 in roster – InterviewSolution

1.

Example 1 Write the solution set of the equation *2+ x-2 = 0 in roster form

Answer»

S = { x | p(x) = 0 where p(x) = x²+x-2 }

(x-1)(x+2)=0

x=1,-2

(x-1)(x+2)x= 1 or x= -2

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