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b2 + ab - 2 - 2b2 + 2ab = -b2 + ab - 2 which cannot be simplified further.
X= plus or minus 1
Two plus 3 minus 2 times 1 squared plus 4 times 16 squared minus 4 times 2 is equal to 1,019.
(24/2)*8-3*(6-2)+1 = (12*8)-(3*4)+1 = 85
That can be factored to (x - 2)(x - 1)