Question Simplify the expression 4a2−108a Evaluate 4a2−12a×9Solution 4a2−108a Show Solution Factor the expression 4a(a−27) Evaluate 4a2−12a×9Multiply the terms 4a2−108aRewrite the expression 4a×a−4a×27Solution 4a(a−27) Show Solution Find the roots a1=0,a2=27 Evaluate 4a2−12a×9To find the roots of the expression,set the expression equal to 0 4a2−12a×9=0Multiply the terms 4a2−108a=0Factor the expression More Steps Evaluate 4a2−108aRewrite the expression 4a×a−4a×27Factor out 4a from the expression 4a(a−27) 4a(a−27)=0When the product of factors equals 0,at least one factor is 0 4a=0a−27=0Solve the equation for a a=0a−27=0Solve the equation for a More Steps Evaluate a−27=0Move the constant to the right-hand side and change its sign a=0+27Removing 0 doesn't change the value,so remove it from the expression a=27 a=0a=27Solution a1=0,a2=27 Show Solution