Question Simplify the expression 30−25a Evaluate 50−25a−20Solution 30−25a Show Solution Factor the expression 5(6−5a) Evaluate 50−25a−20Subtract the numbers 30−25aSolution 5(6−5a) Show Solution Find the roots a=56Alternative Form a=1.2 Evaluate 50−25a−20To find the roots of the expression,set the expression equal to 0 50−25a−20=0Subtract the numbers 30−25a=0Move the constant to the right-hand side and change its sign −25a=0−30Removing 0 doesn't change the value,so remove it from the expression −25a=−30Change the signs on both sides of the equation 25a=30Divide both sides 2525a=2530Divide the numbers a=2530Solution a=56Alternative Form a=1.2 Show Solution