Question

$x3 + x2 - 16x - 16 = 0$
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Answer 1

Объяснение:

${x}^{3} + {x}^{2} - 16x - 16 = 0 \\ {x}^{2} (x + 1) - 16(x + 1) = 0 \\ ( {x}^{2} - 16)(x + 1) = 0 \\ \\ {x}^{2} - 16 = 0 \\ {x}^{2} = 16 \\ x1 = 4 \\ x2 = - 4 \\ \\ x + 1 = 0 \\ x3 = - 1$

ответ:

$x1 = 4 \\ x2 = - 4 \\ x3 = - 1$