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

Question

asked Feb 8, 2017 230k views

2 Answers

Chaami · Answer 1 · 2017-02-09T20:05:50+0000

Answer:

a=9

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.