7262-2013×26+25X2014 +2012
= a²-bxa+ (a-1)x (b+1) + (b-1)
= a²-06+0x6-1+a-bb-1
X190
9=140
3=1948
= a²-2+a = 676-2 +26=100 +700
190x1950-188x 1949-189×1948+187x1947
=(a+1)(b+2)+(a-2) (b+1)+(a-1)xb+ (a-3) (b-1
= 96+2 +1+3α-ab +2 +250-ab+b+01+3-35-00
=2+2+3+3=1955,
1944
9
+
5
15-