Answer:
x = -3
Step-by-step explanation:
Use the perfect square rule to solve the equation.
Rewrite 9 as 3^2.
Check the middle term by multiplying 2ab and compare this result with the middle term in the original expression.
Simplify.
Factor using the perfect square trinomial rule a2−2ab+b2=(a−b)2, where a=x and b=−3.
Set x−3 equal to 0 and solve for x.
Set the factor equal to 0.
Add 3 to both sides of the equation.
The solution is the result of x−3=0.
