Digaaaama ha eka parama hithana krame thama mama kiyanne.anik krame oya kiyanna.mata dan mewa mukuth wadiya mathaka na.:no:mathaka widiya thama me.
mula 3 A,B,C nisa
A+B+C=-b/a---------------1
AB+BC+AC=c/a-------------2
ABC=-d/a-------------------3
meka ganna puluwan ekko mathaken.naththam...