Step-by-step explanation:

I will not be able to explain but you can surely trust those answers
A = 130
B = 50
C = 50
D = 130
E = 75
F = 105
G = 105
H = 75
I = 40
J = 140
K = 38
L = 102
M = 38
N = 50
O = 95
P = 35
Q = 130
R = 100
S = 100
T = 80
U = 80
V = 35
W = 45
X = 40
Y = 40
Z = 60
Just combine like terms: all of the x^2 together, all of the x's together and all of the numbers:
3x2+5x2+5x-2-1
8x2+5x-3 simplified, so letter A