Pergunta Factor the expression (n−1)(n2+n+1) Evaluate n3−1Rewrite the expression in exponential form n3−13Use a3−b3=(a−b)(a2+ab+b2) to factor the expression (n−1)(n2+n×1+12)Any expression multiplied by 1 remains the same (n−1)(n2+n+12)Solução (n−1)(n2+n+1) Mostrar solução Find the roots n=1 Evaluate n3−1To find the roots of the expression,set the expression equal to 0 n3−1=0Move the constant to the right-hand side and change its sign n3=0+1Removing 0 doesn't change the value,so remove it from the expression n3=1Take the 3-th root on both sides of the equation 3n3=31Calculate n=31Solução n=1 Mostrar solução
Álgebra
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Trigonometria
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