# Aptitude | Algebra | Question 4

If 5^{√x} +12^{√x} =13^{√x} then value of x is,**(A)** 2**(B)** 1**(C)** 3**(D)** 4**Answer:** **(D)****Explanation:** say x=1

17!=13

for, x=2 and 3 also not possible

x=4

52+122=132

169=169

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