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x in (-oo:+oo)
(2/7)^98 = x // - x
(2/7)^98-x = 0
316912650057057350374175801344/66009724686219550843768321818371771650147004059278069406814190436565131829325062449-x = 0 // - 316912650057057350374175801344/66009724686219550843768321818371771650147004059278069406814190436565131829325062449
-x = -316912650057057350374175801344/66009724686219550843768321818371771650147004059278069406814190436565131829325062449 // * -1
x = 316912650057057350374175801344/66009724686219550843768321818371771650147004059278069406814190436565131829325062449
x = 316912650057057350374175801344/66009724686219550843768321818371771650147004059278069406814190436565131829325062449
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