Anonymous From: - Posts: - Votes: - |
Solve: 60x^3-70x^2=50x |

Anonymous From: - Posts: - Votes: - |
60x3 - 70x2 - 50x = 0 factor out an x: x(60x2 - 70x - 50) = 0 from here, x = 0 is one of the solutions. Divide both sides by x: 60x2 - 70x - 50 = 0 Divide both sides by 10: 6x2 - 7x - 5 = 0 Factor: (3x - 5)(2x + 1) = 0 Set each factor equal to 0: 3x - 5 = 0 3x = 5 x = 5/3 2x + 1 = 0 2x = -1 x = -1/2 x = 0, 5/3, -1/2 Hope that helps! |

TheMaster9 From: US Posts: 16 Votes: 32 |
60x^3 - 70x^2 = 50x 60x^3 - 70x^2 - 50x = 0 10x * (6x^2 - 7x - 5) = 0 x * (3*2x^2 - 5*2x + 3x - 5) = 0 x * (2x + 1) * (3x - 5) = 0 meaning x = 0 or 2x + 1 = 0 or 3x - 5= 0 thus: x = 0 x = -1/2 x = 5/3 |

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