4 4 2
qx ~ 8.0
qy ~ 9.0
qxp
qyp
qxp = TIMES(qx, qx)
qyp = TIMES(qy, qy)
qx = PLUS(qy, 0)
100 = PLUS(qxp, qyp)

4 4
qx ~ 8.0
qy ~ 9.0
qxp ~ 64.0
qyp ~ 81.0
qxp = TIMES(qx, qx)
qyp = TIMES(qy, qy)
qx = PLUS(qy, 0)
100 = PLUS(qxp, qyp)