A urgent question

(108 - h^2)/(6√3h) = - (24 - h^2)/(2√3h)
首先第一步
我理得你D數有幾複雜
我搞到佢簡單先
來個交叉相乘
(108-h^2)(2)(3h)^0.5 = -6*(3h)^0.5*(24-h^2)
316*(6)^0.5-2*(6)^0.5*h^2=-144(3h)^0.5+6h^2(3h)^0.5
316*(6)^0.5+=-144(3h)^0.5=6h^2(3h)^0.5+2*(6)^0.5*h^2
460(3h)^0.5=8h^2(3h)^0.5
460=8h^2
h=7.58287544