Question Factor the expression 2(1−2x) Evaluate 2−4xSolution 2(1−2x) Show Solution Find the roots x=21Alternative Form x=0.5 Evaluate 2−4xTo find the roots of the expression,set the expression equal to 0 2−4x=0Move the constant to the right-hand side and change its sign −4x=0−2Removing 0 doesn't change the value,so remove it from the expression −4x=−2Change the signs on both sides of the equation 4x=2Divide both sides 44x=42Divide the numbers x=42Solution x=21Alternative Form x=0.5 Show Solution