Question Find the roots r=−91Alternative Form r=−0.1˙ Evaluate 1+9rTo find the roots of the expression,set the expression equal to 0 1+9r=0Move the constant to the right-hand side and change its sign 9r=0−1Removing 0 doesn't change the value,so remove it from the expression 9r=−1Divide both sides 99r=9−1Divide the numbers r=9−1Solution r=−91Alternative Form r=−0.1˙ Show Solution