A = a²-2a+5-7a²-3a+1
A = a²-7a²-2a-3a+5+1
A = -6a²-5a+6
B = 8-t+12-3t²-4t+t²
B = 8+12-t-4t-3t²+t²
B = 20-5t-2t²
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A = a²-2a+5-7a²-3a+1
A = a²-7a²-2a-3a+5+1
A = -6a²-5a+6
B = 8-t+12-3t²-4t+t²
B = 8+12-t-4t-3t²+t²
B = 20-5t-2t²