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Decomposition factor: 1-4x square-4y square + 8xy
1-4x-4y + 8xy
=1 - (4x + 4y-8xy)
=1 - (2x-2y) cube
=[1-（2x-2y)][1+2x-2y]
=(1-2x+2y)( 1+2x-2y)
Factorization: x2-2xy-8y2-x-14y-6 = 24x2-1507x-337842=
Solution 1 is to decompose x ^ 2-2xy-8y ^ 2-x-14y-6 = (x ^ 2-2xy-8y ^ 2) - x-14y-6 = (x-4y) (x + 2Y) - x-14y-6 = (x-4y-3) (x + 2Y + 2) solution 2 is to decompose x ^ 2-2xy-8y ^ 2-14y-6-x = (x + ay + b) (x + CY + D) = x ^ 2 + (a + C) XY + AC ^ 2 + (a + C) y +
Using factorization: (x2 + 2xy-8y2 + 2x + 14y-3) / (x-2y + 3)
(x2+2xy-8y2+2x+14y-3)=(X+4Y-1)(X-2Y+3)
Double cross multiplication
-1
X 4Y
X -2Y
three
The original formula is x + 4y-1
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