Solve-for-x-x-3-115x-150-0-

Question Number 192862 by Red1ight last updated on 30/May/23

Solve for x

x^{3} - 115 x + 150 = 0

Answered by Frix last updated on 30/May/23

(x - 10) (x^{2} + 10 x - 15) = 0

x_{1} = 10

x_{2, 3} = - 5 \pm 2 \sqrt{10}

Commented by Frix last updated on 30/May/23

First try all \pm factors of the constant 150

Commented by Red1ight last updated on 30/May/23

how do you achieve this factorization ?

Commented by York12 last updated on 30/May/23

i n t u i t i o n

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