Question Simplify the expression 1486−4a Evaluate 1492−4a−6Solution 1486−4a Show Solution Factor the expression 2(743−2a) Evaluate 1492−4a−6Subtract the numbers 1486−4aSolution 2(743−2a) Show Solution Find the roots a=2743Alternative Form a=371.5 Evaluate 1492−4a−6To find the roots of the expression,set the expression equal to 0 1492−4a−6=0Subtract the numbers 1486−4a=0Move the constant to the right-hand side and change its sign −4a=0−1486Removing 0 doesn't change the value,so remove it from the expression −4a=−1486Change the signs on both sides of the equation 4a=1486Divide both sides 44a=41486Divide the numbers a=41486Solution a=2743Alternative Form a=371.5 Show Solution