Question 45−4r Find the roots r=445Alternative Form r=11.25 Evaluate 45−4rTo find the roots of the expression,set the expression equal to 0 45−4r=0Move the constant to the right-hand side and change its sign −4r=0−45Removing 0 doesn't change the value,so remove it from the expression −4r=−45Change the signs on both sides of the equation 4r=45Divide both sides 44r=445Solution r=445Alternative Form r=11.25 Show Solution