Question Simplify the expression Solution 247−61a Evaluate 458−61a−211Solution 247−61a Show Solution Find the roots Find the roots of the algebra expression a=61247Alternative Form a≈4.04918 Evaluate 458−61a−211To find the roots of the expression,set the expression equal to 0 458−61a−211=0Subtract the numbers 247−61a=0Move the constant to the right-hand side and change its sign −61a=0−247Removing 0 doesn't change the value,so remove it from the expression −61a=−247Change the signs on both sides of the equation 61a=247Divide both sides 6161a=61247Solution a=61247Alternative Form a≈4.04918 Show Solution