Question Factor the expression 5(3−4k) Evaluate 15−20kSolution 5(3−4k) Show Solution Find the roots k=43Alternative Form k=0.75 Evaluate 15−20kTo find the roots of the expression,set the expression equal to 0 15−20k=0Move the constant to the right-hand side and change its sign −20k=0−15Removing 0 doesn't change the value,so remove it from the expression −20k=−15Change the signs on both sides of the equation 20k=15Divide both sides 2020k=2015Divide the numbers k=2015Solution k=43Alternative Form k=0.75 Show Solution