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| Math Central | Quandaries & Queries |
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Question from sujith, a student: The no of real solutions of the equations 1+x+x^2+x^3 = x^4+x^5 is ? Answer A) 1 B) 5 C) 4 D) 3. Please explain how u arrive the answer from the choice |
Sujith,
Rewrite the equation as
Group the terms asx5 + x4 - x3 - x2 - x - 1 = 0
I hope this helps,(x5 + x4) - (x3 + x2) - (x + 1) = 0
Harley
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