Answer:
x= 10.25
Step-by-step explanation:
#According to the source,
=> x^2+(3√5)^2 = (x+2)^2
=> x^2+9×5 = x^2+2×x×2+2^2
=> x^2+45 = x^2+4x+4
=> x^2+45-x^2-4x-4 = 0
=> - 4x+41 = 0
=> -4x = - 41
=> x = 41/4
=> x = 10.25
...........I'm sure...........100%