Porisma

A hint to get started

Use a positive numerator to simplify a cubic ratio

Without using a calculator, solve the inequality x3+3x2+2x+1x3−2x2≥1\dfrac{x^3+3x^2+2x+1}{x^3-2x^2}\geq1. marks

[2016/NYJC/Promo/2]

CJC · Review Problems · Question 5

Move all terms to one side and identify zeros and forbidden denominator inputs before choosing intervals.

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