A = 3×x =3×-2 = -6
B = 5×x + 1 = 5×-2+1 = -9
C = (x-3)×(x + 1) =(-2-3)×(-2+1) = 5
D = 3×x - 2×(4×x − 1) = 3×-2-2×(4×-2-1) = 12
E = 7×x² = 7×(-2×-2) = 28
F = 17 - 3×x = 17-3×-2 = 23
G = 5×(2×x - 2) = 5×(2×-2-2) = -30
H = x×(x + 1) - 9×x = -2×(-2+1)-9×-2 = 20
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Verified answer
A = 3×x =3×-2 = -6
B = 5×x + 1 = 5×-2+1 = -9
C = (x-3)×(x + 1) =(-2-3)×(-2+1) = 5
D = 3×x - 2×(4×x − 1) = 3×-2-2×(4×-2-1) = 12
E = 7×x² = 7×(-2×-2) = 28
F = 17 - 3×x = 17-3×-2 = 23
G = 5×(2×x - 2) = 5×(2×-2-2) = -30
H = x×(x + 1) - 9×x = -2×(-2+1)-9×-2 = 20