Question

) 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​

Answer 1

Answer:

a) xy+(x-y) +1

b) 2091

Step-by-step explanation:

hope you help it

Answer 2

Step-by-step explanation:

(x+1)(y+1)=xy+(x+y)+1

51×41=50×40+(50+40)+1=2000+90+1=2091