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5x² + 10x + 30= 3
5x² + 10x + 30 - 3 = 0
5x² + 10x + 27 = 0.
a: 5
b: 10
c: 27
x = -b ± √ b² + 4.a.c
x= -10 ± √ 10² + 4.5.27
x= -10 ± √ 100 + 540
x= -10 ± √ 640
x1= x= -10 + √ 640
x2= x= -10 - √ 640
LISTO :) es una ecuación de 2do grado