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Use the quadratic function formula to solve the equation x^2 - 7x - 6 = 0

User Mbutan
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\tt x^2-7x-6=0 \\ x^2-x-6x-6=0 \\ x(x-1)-6(x-1)=0 \\ (x-6)(x-1)=0 \\ 1. x-6=0 \rightarrow \bold{x=6} \\ 2.x-1=0 \rightarrow \bold{x=1} \\ S=\{6,1\}
User Deroude
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