Question Factor the expression (y−1)(y2+y+1) Evaluate y3−1Rewrite the expression in exponential form y3−13Use a3−b3=(a−b)(a2+ab+b2) to factor the expression (y−1)(y2+y×1+12)Any expression multiplied by 1 remains the same (y−1)(y2+y+12)Solution (y−1)(y2+y+1) Show Solution Find the roots y=1 Evaluate y3−1To find the roots of the expression,set the expression equal to 0 y3−1=0Move the constant to the right-hand side and change its sign y3=0+1Removing 0 doesn't change the value,so remove it from the expression y3=1Take the 3-th root on both sides of the equation 3y3=31Calculate y=31Solution y=1 Show Solution
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