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**https://jjthetutor.com/the-function-fx-52x4-16x3-12x2-13x-25-has-points-of-inflection/**

The function f(x) = -5:2x^4 - 1:6x^3 + 1:2x^2 +1:3x -2:5 has points of inflection

The function f(x) = -5:2x^4 - 1:6x^3 + 1:2x^2 +1:3x -2:5 has points of inflection