+37159 F/g = 1 / ( x (sqrt(x+3)) So you SHOULD be able to see x cannot = 0
And x has to be greater than -3 because the sqrt would be neg if less than -3 or zero if equal to -3 (zero in denominator not allowed)
so domain x = (-3, 0) U (0, +inf) Does not include -3 or 0 And goes to inf
