Activities 745
4. Divide both sides of the equation by the
leading coefficient a.
Note: Continue to use the last answer
(2 ±) as in step 3 in steps 4 through
9.
5. Use the expand() function to expand the
result of the last answer.
6. Complete the square by adding ((b/a)/2)2
to both sides of the equation.
7. Factor the result using the factor()
function.
8. Multiply both sides of the equation by 4a2.