common.or
auth.dont_have_account auth.register
সরল কর :
(6m+2)3–3(6m+2)2(6m-4)+3(6m+2) (6m-4)2–(6m-4)3
3x+y
x2+y
5p+2q
a2b+c2d
6p-7
ax-by