-ture of the Yootsof the gactati..epnEonthe na – InterviewSolution

1.

-ture of the Yootsof the gactati..epnEonthe na

Answer»

2x²+x-1 => D = (b)²-4(a)(c) = (1)²-4(2)(-1) = 1+8 = 9 = 3²

since S is a perfect square so, roots are real and rational.

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