Find the combined equation of the pair of lines \(2x+y=0\) and \(3x-y=0\)

Q.2 (i) Find the combined equation of the pair of lines \(2x+y=0\) and \(3x-y=0\)

Doubtly Asked 29 Oct 2026 Board exam · July 2024 hsc 12th Save WhatsApp Report

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Answer: \(6x^2+xy-y^2=0\)

The combined equation is \((2x+y)(3x-y)=0\), i.e. \(6x^2-2xy+3xy-y^2=0\), i.e. \(6x^2+xy-y^2=0\).

Doubtly AI · 29 Oct 2026 AI-generated · not yet verified Report

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