Question Simplify the expression 31z2 Evaluate 2004668z×zCancel out the common factor 668 31z×zSolution 31z2 Show Solution Find the roots z=0 Evaluate 2004668z×zTo find the roots of the expression,set the expression equal to 0 2004668z×z=0Cancel out the common factor 668 31z×z=0Multiply the terms 31z2=0Rewrite the expression z2=0Solution z=0 Show Solution