Question

What is the value of x if 5x+^2 = 5^9?
A.X=-11
B.X=-7
C.X= 7
D.X= 11

Answer 1

Answer: C) x = 7

Explanation:

`5^x^+^2=5^9`

Since we have the same base, equal the exponents.

`x+2=9\\x=9-2\\x=7`