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14-08-2018
Mathematics

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Find the zeros of polynomial functions and solve polynomials equations.
f(x)=2x^3+2x^2-4x

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choixongdong choixongdong

14-08-2018

f(x)=2x^3+2x^2-4x

The zeros of polynomial functions

2x^3 + 2x^2 - 4x = 0

2x(x^2 + x - 2) = 0

2x(x - 1)(x + 2) = 0

2x = 0; x = 0

x - 1 = 0; x = 1

x + 2 = 0; x = -2

Answer

x = -2 , 0 , 1

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