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1-xy-20x^2y^2 please solve

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1 Answer

Variable change: z=xy
As a result of substitution, you will get the following expression:
1-z-20z2 . If you need to factor this, use quadratic formula:
z1=-1/4; z2=1/5; Therefore
Substituting xy for z, we will obtain final factoring:
Since you did not specify what the equation is, I would leave the rest to you.