Question Simplify the expression 10−4a Evaluate 16−6−4aSolution 10−4a Show Solution Factor the expression 2(5−2a) Evaluate 16−6−4aSubtract the numbers 10−4aSolution 2(5−2a) Show Solution Find the roots a=25Alternative Form a=2.5 Evaluate 16−6−4aTo find the roots of the expression,set the expression equal to 0 16−6−4a=0Subtract the numbers 10−4a=0Move the constant to the right-hand side and change its sign −4a=0−10Removing 0 doesn't change the value,so remove it from the expression −4a=−10Change the signs on both sides of the equation 4a=10Divide both sides 44a=410Divide the numbers a=410Solution a=25Alternative Form a=2.5 Show Solution