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If the pair of lines represented by the ...

If the pair of lines represented by the equation `6x^2 + 17xy + 12y^2 + 22x + 31y + 20 = 0` be `2x + 3y +p= 0` and `3x + 4y + q= 0,` then the sum of digits of `p^2+ q^2-` is equal to

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