Respuesta:
me ayudan por favor
Explicación paso a paso:
[tex]x^2+4x-3=0[/tex]
a = [tex]x^{2}[/tex]
b= [tex]4x[/tex]
c=[tex]-3[/tex]
Resolver
[tex]x_{1,\:2}=\frac{-4\pm \sqrt{4^2-4\cdot \:1\cdot \left(-3\right)}}{2\cdot \:1}\\\\x_{1,\:2}=\frac{-4\pm \:2\sqrt{7}}{2\cdot \:1}\\\\[/tex]
Raices
[tex]x=-2+\sqrt{7}\\x=-2-\sqrt{7}[/tex]
Segundo ejercicio
[tex]x^2-16=0[/tex]
a=[tex]x^{2}[/tex]
b=x
c=-16
[tex]x^2-16+16=0+16[/tex]
[tex]x=4\\x=-4[/tex]
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Respuesta:
me ayudan por favor
Explicación paso a paso:
[tex]x^2+4x-3=0[/tex]
a = [tex]x^{2}[/tex]
b= [tex]4x[/tex]
c=[tex]-3[/tex]
Resolver
[tex]x_{1,\:2}=\frac{-4\pm \sqrt{4^2-4\cdot \:1\cdot \left(-3\right)}}{2\cdot \:1}\\\\x_{1,\:2}=\frac{-4\pm \:2\sqrt{7}}{2\cdot \:1}\\\\[/tex]
Raices
[tex]x=-2+\sqrt{7}\\x=-2-\sqrt{7}[/tex]
Segundo ejercicio
[tex]x^2-16=0[/tex]
a=[tex]x^{2}[/tex]
b=x
c=-16
Resolver
[tex]x^2-16+16=0+16[/tex]
Raices
[tex]x=4\\x=-4[/tex]