The key is to cross 1 number from both sides till you get to the middle last number so the answer is 4
Answer: 
Step-by-step explanation:
To find the area of the shaded region, you must find the area of the larger rectangle [(x+10)×(2x+5)] and subtract the area of the smaller rectangle [(x+1)×(x+1)] from it.
First, you simplify the larger rectangle's area:
(x+10)×(2x+5) = 
Then, simplify the smaller rectangle's area:
(x+1)×(x+1) = 
Finally, subtract the smaller rectangle's area from the larger rectangle's area:

Therefore, the final answer is
.
I hope this helps!
Answer: NOTHING I JUST WANT THE 10 WITHDRAWED POINTS HAHAHAHAHAHAHAHAHAH
Step-by-step explanation:
NOTJIN
<span><span><span>8a</span>c</span>+<span>12b</span></span>+<span>4 is what i get
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