Mathematics, 09.06.2020 02:57 goldenarrow

100 POINT AND BRINIEST! DONT ANSWER IF YOU DONT KNOW THAT ANSWER! 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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100 POINT AND BRINIEST! DONT ANSWER IF YOU DONT KNOW THAT ANSWER! Describe and correct the error.