Question 917029
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Hi
x^2+3x-4   Hint: +3 and  (-4)... factors are going to involve ± (I put + first)
(x+4)(x-1) = 0,    x is -4, 1
....
checking
F	First terms  x^2
O	Outside terms -1
I	Inside terms   4
L	Last terms    -4