$z=2x+\frac{3}{d^4}$

Write this expression in java

None of the other answers

int $z=2^{**}x+\frac{3}{?}$ Math.pow $(d,4)$;

double $z=2^{**}x+\frac{3}{d^{**}}{d}^{**}{d}^{**}d$;

double $z=2^{**}x+\frac{3}{?}$ Math.pow $(4,d)$;

double $z=2^{**}x+\frac{3}{?}$ Math.pow $(d,4)$;