Step-by-step explanation:
The answers are A, D and E
Answer:
3x^2+5x+1
(x^2 + 3x + 1) + (2x^2 + 2x)
Combine like terms
x^2 + 2x^2 + 3x +2x +1
The Correct answer would be B.
The rule of multiplying by 8 works for all but 4 T-shirts