Question Find the roots r=−81Alternative Form r=−0.125 Evaluate 1+8rTo find the roots of the expression,set the expression equal to 0 1+8r=0Move the constant to the right-hand side and change its sign 8r=0−1Removing 0 doesn't change the value,so remove it from the expression 8r=−1Divide both sides 88r=8−1Divide the numbers r=8−1Solution r=−81Alternative Form r=−0.125 Show Solution