Respuesta:
3x²+15=-8x²+20
3x²+8x²=20-15
11x²=5
x²=[tex] \frac{5}{11 }[/tex]
x= [tex] \sqrt{ \frac{5}{11} } [/tex]
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Respuesta:
3x²+15=-8x²+20
3x²+8x²=20-15
11x²=5
x²=[tex] \frac{5}{11 }[/tex]
x= [tex] \sqrt{ \frac{5}{11} } [/tex]