Consider the following system of equations: (image) It is given that the determinant of the coefficient matrix of the system is a, with a ≠ 0. Find a solution of x2 only (if it exists) in terms of a,b,c,d,e and f (or some of these) by using Cramer's rule. Order any expression consisting of a sum of terms by giving the constant term first and order the rest of the terms alphabetically. Follow the normal use of brackets (only) when necessary and use "/" for division. Leave the space blank if the system is inconsistent.

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Q: 1+a² – & 2ab 2ab -26 - 1- a² + b = (1+a² +&)* 2a 26 -2a 1- a – 6

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Q: -2 11 4 -2 1 2 3 2

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