Question

efetue as multiplicação urgente!!!
(ײ+ײ-1).(×-1) ​

Answer 1

Resposta:

${2x}^{3} - {2x}^{2} - x + 1$

Explicação passo-a-passo:

$( {x}^{2} + {x}^{2} - 1) \times (x - 1) \\ \\ {x}^{2} \times (x + 1) + {x}^{2} \times (x - 1) - 1(x - 1) \\ \\ {x}^{3} - {x}^{2} + {x}^{3} - {x}^{2} - x + 1 \\ \\ {2x}^{3} - {2x}^{2} - x + 1$

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