raspiveysr raspiveysr

23-08-2017
Mathematics

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solve equation 10y^3-6y=4y^2

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choixongdong choixongdong

23-08-2017

10y^3-6y=4y^2
10y^3 - 4y^2 - 6y=0
2y(5y^2 - 2y - 3) = 0
2y(5y - 3)(y + 1) = 0
2y = 0; y = 0
5y - 3 = 0; y = 3/5
y +1 = 0; y = -1

answer
y = 0, y = -1 and y = 3/5

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