Respuesta :
Answer:
D. 33
Step-by-step explanation:
√(x-8) + 2 = 7
subtract 2 from both sides
√(x-8) = 5
square both sides
(√(x-8))² = 5²
x-8 = 25
add 8 to both sides
x = 33
ANSWER
D. 33
EXPLANATION
The given radical equation is
[tex] \sqrt{x - 8} + 2 = 7[/tex]
Group similar terms,
[tex]\sqrt{x - 8} = 7 - 2[/tex]
[tex]\sqrt{x - 8} = 5[/tex]
Square both sides:
[tex] {(\sqrt{x - 8})}^{2} = {5}^{2} [/tex]
Simplify
[tex]x - 8 = 25[/tex]
Solve for x
[tex]x = 25 + 8 = 3[/tex]