Question 621774
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A good place to start would be to realize that ^ represents raising to a power hence 28x^2y^2 - 49x^2y is a plain text representation of


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 28x^2y^2\ -\ 49x^2y]


Write the prime factorization of each of the terms:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 2*2*7*x*x*y*y\ -\ 7*7*x*x*y]


Take out any factors that are common to both terms:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 7x^2y\left(4y\ -\ 7)]



John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
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