simplify 6x 8y 3x2 xy 4y2Solution3x2 xy 4y2 3x2 4xy
simplify
(6x + 8y) / (3x^2 + xy - 4y^2)
Solution
3x2 + xy - 4y2 = 3x2 + 4xy - 3xy - 4y2
or, 3x2 + xy - 4y2 = x(3x + 4y) - y(3x + 4y)
or, 3x2 + xy - 4y2 = (x-y)(3x + 4y)
So, (6x + 8y)/(3x2 + xy - 4y2) = 2(3x + 4y)/(x-y)(3x + 4y)
or, (6x + 8y)/(3x2 + xy - 4y2) = 2/(x-y)
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