X's
2x+3x
6x
3y+6y
9y
4xy-2xy
2xy
1+1
2
2x² + 19x²
21x²
2x +3x + 4x
9x
42y +6y
48y
43xy+ 9xy
52xy
7+12
19
2x²+11x²-2
11x²
3x + 4x +16x - 21x
2x
2y + 4y +62y -4y
64y
64xy- 41xy
23xy
43-32
11
2x²+2x
4x³
-3x + (4x) - 9x +4x
-4x
43y + 5y - 18y -15y
15y
11xy-7xy+4xy
22xy
54+23-5
72
5²x5²
25²
-15x + 6x +15x -42x + 19x
-17x
56y- 23y
33y
100-123+7
-16
3² x 3² + 4
85