Question Find the roots a=251Alternative Form a=25.5 Evaluate 51−2aTo find the roots of the expression,set the expression equal to 0 51−2a=0Move the constant to the right-hand side and change its sign −2a=0−51Removing 0 doesn't change the value,so remove it from the expression −2a=−51Change the signs on both sides of the equation 2a=51Divide both sides 22a=251Solution a=251Alternative Form a=25.5 Show Solution