Question: Roots of equation with KummerM

when the kummerM function equal to 0?????

or

-(((beta*eta^2-(1/2)*beta+1)*p^2-(1/2)*beta^3)*KummerM((1/4)*((-beta+2)*p^2-beta^3)/p^2, 1, beta*eta^2)+(1/2)*KummerM((1/4)*((-beta+6)*p^2-beta^3)/p^2, 1, beta*eta^2)*((beta-2)*p^2+beta^3))*exp(-(1/2)*beta*eta^2)/(p^2*beta)=0

how solve this equation unitage beta?

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