Question Simplify the expression c−21 Evaluate c−15315Solution More Steps Evaluate 15315Reduce the numbers 121Calculate 21 c−21 Show Solution Find the roots c=21 Evaluate c−15315To find the roots of the expression,set the expression equal to 0 c−15315=0Divide the terms More Steps Evaluate 15315Reduce the numbers 121Calculate 21 c−21=0Move the constant to the right-hand side and change its sign c=0+21Solution c=21 Show Solution