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Now the given pair of lines can be split into linear factors as
a2x + hy (+ -) y (h2-a2b2).
(+ -) stands for plus or minus.
Using the two equations, we get the slopes as
-a/(h(+ -) h2-a2b2) ,
Now, use the condition that one slope is three times the other. Doing so, we get the value of h to be 2ab/ 3.
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