Question Factor the expression 8(2r−1) Evaluate 16r−8Solution 8(2r−1) Show Solution Find the roots r=21Alternative Form r=0.5 Evaluate 16r−8To find the roots of the expression,set the expression equal to 0 16r−8=0Move the constant to the right-hand side and change its sign 16r=0+8Removing 0 doesn't change the value,so remove it from the expression 16r=8Divide both sides 1616r=168Divide the numbers r=168Solution r=21Alternative Form r=0.5 Show Solution