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

Given the quadratic equation, (x + 2)^2 = a. 
And, x = 1

Solving for the value of a
(x + 2)^2 = a.
a = (x + 2)^2
a = (1 + 2)^2
a = 3^2
a = 9

The value of a is 9

Answer 2

The value of a in the given equation is 9

Calculations and Parameters:

Given the quadratic equation, $(x + 2)^2 = a.$

And, x = 1

Solving for the value of a

$(x + 2)^2 = a.\\a = (x + 2)^2\\a = (1 + 2)^2\\a = 3^2\\a = 9$

Therefore, the value of a is 9

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