Question Simplify the expression 290−d Evaluate 290−d×1Solution 290−d Show Solution Find the roots d=290 Evaluate 290−d×1To find the roots of the expression,set the expression equal to 0 290−d×1=0Any expression multiplied by 1 remains the same 290−d=0Move the constant to the right-hand side and change its sign −d=0−290Removing 0 doesn't change the value,so remove it from the expression −d=−290Solution d=290 Show Solution