Mister Exam

4𝑥1𝑥3−6𝑥2𝑥4 canonical form

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The solution

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-6*x2*x4 + 4*x1*x3 = 0
$$4 x_{1} x_{3} - 6 x_{2} x_{4} = 0$$
4*x1*x3 - 6*x2*x4 = 0