100
(2)(3)(m)(m)(m)(m)
6m^4
200
(5)(5)(q)(q)(r)(r)
25q^2r^2
300
7 + 3^2 - (7 x 1) =
9
400
-9t + 6s + 4t + 12s =
18s - 5t
400
-5(4a +2b)
-20a - 10b
400
45 + 9 x (8 - 6) =
63
500
-4a + 6b + 5a + -10b =
1a - 4b
500
-5b(2b - 7)
-10b^2 + 35b
500
15 + 2^3 - 2 x 3 =
17