Question 76853
Y^2=X^2-32 NOW SUBSTITUTE (X^2-32) FOR Y^2 IN THE SECOND EQUATION & SOLVE FOR X
X^2+(X^2-32)=40
X^2+X^2=40+32
2X^2=72
X^2=72/2
X^2=36
X=6 ANSWER.
Y*2=6*6-32
Y^2=36-32
Y^2=4
Y=2 ANSWER.
PROOF
6^2+2^2=40
36+4=40
40=40