Question Factor the expression 5(7−8k) Evaluate 35−40kSolution 5(7−8k) Show Solution Find the roots k=87Alternative Form k=0.875 Evaluate 35−40kTo find the roots of the expression,set the expression equal to 0 35−40k=0Move the constant to the right-hand side and change its sign −40k=0−35Removing 0 doesn't change the value,so remove it from the expression −40k=−35Change the signs on both sides of the equation 40k=35Divide both sides 4040k=4035Divide the numbers k=4035Solution k=87Alternative Form k=0.875 Show Solution