Determine the solution set of (x + 1)2 = 25. {-8, 6} {-8, 4} {-6, 4}
( x + 1 )² = 25 /√
There are two solutions:
x + 1 = 5, x = 5 - 1, x = 4
x + 1 = - 5 , x = -5 -1, x = -6
The solution set is { -6, 4 }
Answer:
The solution set is {-6,4}
Step-by-step explanation:
Given: \((x+1)^2=25\)
We will solve for x and find solution set.
\((x+1)^2=25\)
Taking square root both sides
\(\sqrt{(x+1)^2}=\pm \sqrt{25}\)
\(x+1=\pm 5\)
x+1=5 or x+1=-5
x=5-1 or x=-5-1
x=4 or x=-6
The solution are x=-6,4
Hence, The solution set is {-6,4}