Answer:
4
Step-by-step explanation:
(a+2)(a-1) - (a+1)(a-2)
put a=2
(2+2)(2-1) - (2+1)(2-2)
4*1 -3*0
4-0
4
Answer:


Step-by-step explanation:



















First, let's convert X into 4
(3*4 - 4)ft, (4*2 - 1)ft, (2*4*2 - 15)ft
Now lets simplify this a little
(12 - 4)ft, (8 - 1)ft, (16 - 15)ft
Awesome now lets finish up
8 x 9 x 1 / 2 = 36
The answer should be 36ft. Unless I did my math wrong.
Answer: the answer is D
Step-by-step explanation:
58,927 - move decimal 4 places to the left
5.8927