Relax

Respuesta :

we have the quadratic equation

[tex]u^2-u-12=0[/tex]

we have that

a=1

b=-1

c=-12

Applying the formula to solve a quadratic equation

[tex]u=\frac{-(-1)\pm\sqrt{-1^2-4(1)(-12)}}{2(1)}[/tex][tex]u=\frac{1\pm7}{2}[/tex]

The values of u are

u=4 and u=-3

therefore

The answer is

u=-3,4

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