Question Simplify the expression a−30 Evaluate 1×a−30Solution a−30 Show Solution Find the roots a=30 Evaluate 1×a−30To find the roots of the expression,set the expression equal to 0 1×a−30=0Any expression multiplied by 1 remains the same a−30=0Move the constant to the right-hand side and change its sign a=0+30Solution a=30 Show Solution