(x + 5) + 3
3
x-7
4x2 -x -1 :D
x^5+x^4+7x^2+x-2
The 1 1 plus x can be another way to write HTC One X One X plus.
x^2 + x -x^2 +1 =x+1
(x + 5) + 3
(4 x 9) + (5 x 9) = (9 x 9)c= 81
3
3x2 + 2x + 3 + x2 + x + 1 = 4x 2+ 3x + 4
x-7
4x2 -x -1 :D
X=(49+7)+1x=56+1x=57
(2 x 9) + (3 x 9) = 5 x 9 = 45
9(6 + x) = 1
Average = (sum of the items) / (number of items)Sum of the items = (3x + 1) + (x - 3) = 4x - 2Number of items = 2Average = (2x - 1)