问题 Simplify the expression 16015−b Evaluate 16017−2−b解题方案 16015−b 显示解题方案 Find the roots b=16015 Evaluate 16017−2−bTo find the roots of the expression,set the expression equal to 0 16017−2−b=0Subtract the numbers 16015−b=0Move the constant to the right-hand side and change its sign −b=0−16015Removing 0 doesn't change the value,so remove it from the expression −b=−16015解题方案 b=16015 显示解题方案
