Use inspection to solve the equation x2=81 , then select the complete solution set below. If there are no real solutions, select “There are no real solutions.”(1 point)
Responses
{−9,9}
left brace negative 9 comma 9 right brace
There are no real solutions.
There are no real solutions.
{−9}
left brace negative 9 right brace
{9}
To solve the equation x^2 = 81 using inspection, we need to find the values of x that satisfy the equation.
First, let's analyze the equation x^2 = 81. We can see that 81 is a perfect square, since it can be written as 9^2. This means that both positive and negative 9 can be the value of x in order to satisfy the equation.
So, the solution set is {−9, 9}. The complete solution set contains both -9 and 9.
Therefore, the correct option is: {−9,9}.