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x² + x - 132 = 0
x= {-1+-√(1² - 4*1*-132)} / 2*1
x ={-1+-√(1+528)} / 2
x = {-1+-√529} / 2
x = {-1+-23}/2
x₁ = {-1-23}/2 = -24/2 = -12
x₂ = {-1+23}/2 = 22/2 = 11
Por lo que tenemos dos posibilidades de solución:
-12 y -11:
-12*-11 = 132
11 y 12
11*12 = 132
Saludos........