Question

Nancy found that x=1 is one solution to the quadratic equation (x+2)2=a. what is the value of a?

Answer 1

Answer:

the answer is 9

Step-by-step explanation:

trust me

Answer 2

Answer:

a=9

Step-by-step explanation:

Let's break this down:

We know x=1, so we can substitute that in to get;

(1+2)^2=a

1+2=3, which gives us,

(3)^2=a

3 squared is 9

Therefore, a=9.