Solve (x + 9)2 = 25.
1 answer:
Answer:
x = -4 and x = -14
Step-by-step explanation:
Our equation is (x + 9)² = 25
Applying the square root property we would need to take the square root of both sides:
This give us x + 9 = ±5
Here we have two equations since taking the square root gives us a positive and negative value
Our first equation is x + 9 = 5, and to isolate the variable we would need to subtract 9 from both sides, giving us x = -4
Our second equation is x + 9 = -5, and to isolate the variable we would need to subtract 9 from both sides, giving us x = -14
You might be interested in
ANSWER
D.
EXPLANATION
We want to find the expression which is a square of a binomial.
In other words, we want to identify the expression which is a perfect square trinomial.
This expression can be rewritten as,
This is a perfect square trinomial that can be factored as:
This is the square of a binomial.
The correct answer is D