Describe and correct the error.
solve x^3 + 20x= -2x^3 - 7x
3x^3 + 27x = 0
3x(x^2...
Mathematics, 20.09.2019 17:10, cragajjar2
Describe and correct the error.
solve x^3 + 20x= -2x^3 - 7x
3x^3 + 27x = 0
3x(x^2 + 9) = 0
3x(x-3)(x + 3) = 0
x = { -3, 0, 3}
Answers: 3
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