) Write the expansion of ( x + 1) ( y + 1) . b) Find 51 x 41
3 points
a) xy+(x-y) +1 b)2201
a) xy+(x+y) +1 b)2201
a) xy+(x-y) +1 b)2091
a) xy+(x+y) +1 b)2091
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) Write the expansion of ( x + 1) ( y + 1) . b) Find 51 x 41
3 points
a) xy+(x-y) +1 b)2201
a) xy+(x+y) +1 b)2201
a) xy+(x-y) +1 b)2091
a) xy+(x+y) +1 b)2091
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Answer:
a) xy+(x-y) +1
b) 2091
Step-by-step explanation:
hope you help it
Step-by-step explanation:
(x+1)(y+1)=xy+(x+y)+1
51×41=50×40+(50+40)+1=2000+90+1=2091