SQUARE OF A . TRINOMIAL

(a+b+ef : (a% absac) + (ab+b+be) (ac+be+c*)
(841+1) > (4+248) + (2+1+1) & (2+1+1)
4(2+1+1) * B8+4+4

(1+2+1)" -

(L+2+1) + (2+4+2)+
4+8+4

(L+r2+1)
4(1ez+l) =

(Lvr1+2) = (L+1+2) + (L+1+2) + (2+2+4)

4(1+1vg) * 4+4+8

T T_r S AL 0‘-.
£ ? -
LSt et s 5
\ g

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