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

User Boguz
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1 Answer

3 votes

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