Answer:
x = 5 or x = -5
Explanation:
x^| x + 8 | = 64
write the number in exponential form with the base of 4.
4^|x + 8| = 4³
Since the base are same, set the exponents are equal.
| x + 8 | = 3
Use the absolutely value to rewrite the absolute value equation as two seperate equation.
x + 8 = 3
x + 8 = -3
Solve for x.
x + 8 = 3. x + 8 = -3
subtract 8 from both side
x + 8 - 8 = 3 - 8 x + 8 - 8 = -3 + 8
x = -5. x = 5