(x + a)(x+b)= x +(a+b)x+ ab find the value
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( a ) 1 0 3×1 0 4=( 1 0 0+3 )×( 1 0 0+4 )
=1 0 0
2
+( 3+4 )×1 0 0+3×4
=1 0 0 0 0+7 0 0+1 2=1 0 ,7 1 2
( ਬੀ ) 1 0 3×9 8=( 1 0 0+3 )×( 1 0 0-2 )
=1 0 0
2
+( 3-2 )×1 0 0+3×- 2
=1 0 ,0 0 0+1 0 0-6=1 0 ,0 9 4
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