Question Simplify the expression −65−40f Evaluate 15−40f−80Solution −65−40f Show Solution Factor the expression −5(13+8f) Evaluate 15−40f−80Subtract the numbers −65−40fSolution −5(13+8f) Show Solution Find the roots f=−813Alternative Form f=−1.625 Evaluate 15−40f−80To find the roots of the expression,set the expression equal to 0 15−40f−80=0Subtract the numbers −65−40f=0Move the constant to the right-hand side and change its sign −40f=0+65Removing 0 doesn't change the value,so remove it from the expression −40f=65Change the signs on both sides of the equation 40f=−65Divide both sides 4040f=40−65Divide the numbers f=40−65Solution More Steps Evaluate 40−65Cancel out the common factor 5 8−13Use b−a=−ba=−ba to rewrite the fraction −813 f=−813Alternative Form f=−1.625 Show Solution