Question Factor the expression Factor 2(779−10a) Evaluate 1558−20aSolution 2(779−10a) Show Solution Find the roots Find the roots of the algebra expression a=10779Alternative Form a=77.9 Evaluate 1558−20aTo find the roots of the expression,set the expression equal to 0 1558−20a=0Move the constant to the right-hand side and change its sign −20a=0−1558Removing 0 doesn't change the value,so remove it from the expression −20a=−1558Change the signs on both sides of the equation 20a=1558Divide both sides 2020a=201558Divide the numbers a=201558Solution a=10779Alternative Form a=77.9 Show Solution