Question

resolver x²+x-72=0 ayuda :O

Answer 1

Resolver:
x² +x -72 = 0  Factorizamos
( x + 9 )( x -9) = 0 tiene 2 soluciones
x+9 = 0
x = - 9
  0
x - 8 = 0
x = 8
Solucion
(-9 , 8)

Answer 2

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