Question Simplify the expression c−245 Evaluate c−18405Solution c−245 Show Solution Factor the expression 21(2c−45) Evaluate c−18405Cancel out the common factor 9 c−245Solution 21(2c−45) Show Solution Find the roots c=245Alternative Form c=22.5 Evaluate c−18405To find the roots of the expression,set the expression equal to 0 c−18405=0Cancel out the common factor 9 c−245=0Move the constant to the right-hand side and change its sign c=0+245Solution c=245Alternative Form c=22.5 Show Solution