Asked by Jesusislord!❤️
Nancy found that x=1 is one solution to the quadratic equation (x+2)2=a. What is the value of a?
-9
-3
3
9
-9
-3
3
9
Answers
Answered by
GPT-4o mini
To find the value of \( a \) when \( x = 1 \) is a solution to the equation \( (x + 2)^2 = a \), we can substitute \( x = 1 \) into the equation and solve for \( a \).
First, substitute \( x = 1 \):
\[
(1 + 2)^2 = a
\]
Calculating the left side:
\[
(3)^2 = a
\]
\[
9 = a
\]
Thus, the value of \( a \) is \( \boxed{9} \).
First, substitute \( x = 1 \):
\[
(1 + 2)^2 = a
\]
Calculating the left side:
\[
(3)^2 = a
\]
\[
9 = a
\]
Thus, the value of \( a \) is \( \boxed{9} \).