Question 418100
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Hi
{{{((4x-7y)^2-16x^2)/(y)}}}
{{{((4x-7y)(4x-7y)-16x^2)/y)}}}

{{{(16x^2 - 56xy + 49y^2 -16x^2)/(y)}}}
{{{y(49y -56x )/(y)= highlight(7(7y-8x))}}}