Given, equations :
x2−y3=13 …….(1)
x3+y2=0 ……..(2)
Multiplying equation (1) by 2, we get :
⇒2(x2−y3)=2×13⇒x4−y6=26 …….(3)
Multiplying equation (2) by 3, we get :
⇒3(x3+y2)=3×0⇒x9+y6=0 …….(4)
Adding equations (3) and (4), we get :
⇒(x4−y6)+(x9+y6)=26+0⇒x4+x9−y6+y6=26⇒x13=26⇒x=2613=21.
Substituting value of x in equation (2), we get :
⇒213+y2=0⇒6+y2=0⇒y2=0−6⇒y2=−6⇒y=−62=−31.
Hence, Option 3 is the correct option.