Question

ecuacion algebraica ayudaaa

x²+3x-4=0

Answer 1

Respuesta:

x² - 3x - 4 = 0

Ecuación de segundo grado y se resuelve usando la formula

X = ( -b ± √b² - 4.a.c) / 2a

a = 1 b = -3 c = - 4

X = [ 3 ± √(-3)² - 4.1. (-4) ] / 2.1

X = [3 ± √9 + 16 ] / 2

X = [3 ± √25] / 2

X = [3 ± 5 ] / 2

X₁ = ( 3 + 5) / 2

X₁ = 8 / 2

X₁ = 4

X₂ = ( 3 - 5) / 2

X₂ = ( - 2) / 2

X₂ = - 1