Question Simplify the expression t3−6t2+12t−8 Evaluate (t−2)3Use (a−b)3=a3−3a2b+3ab2−b3 to expand the expression t3−3t2×2+3t×22−23Solution t3−6t2+12t−8 Show Solution Find the roots t=2 Evaluate (t−2)3To find the roots of the expression,set the expression equal to 0 (t−2)3=0The only way a power can be 0 is when the base equals 0 t−2=0Move the constant to the right-hand side and change its sign t=0+2Solution t=2 Show Solution
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