v2-2v-13 2 – InterviewSolution

1.

v2-2v-13 2

Answer»

v² - 2v - 13 = 2

v² - 2v - 15 = 0

v² -5v + 3v - 15 = 0

v ( v - 5) + 3 ( v - 5) = 0

( v + 3) ( v - 5) = 0

So, v = 5 and -3

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