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

a=9

EXPLANATION

The given quadratic equation is

${(x + 2)}^{2} = a$

If x=1 is a solution, then it must satisfy this equation:

${(1 + 2)}^{2} = a$

${3}^{2} = a$

$a = 9$

Therefore the value of 'a' is 9

Answer 2

Answer:

answer is A

Step-by-step explanation: