bl12m bl12m
  • 24-03-2021
  • Mathematics
contestada

Solving quadratics by factoringx2-4x-25=-4x

Respuesta :

jimrgrant1 jimrgrant1
  • 24-03-2021

Answer:

x = ± 5

Step-by-step explanation:

Given

x² - 4x - 25 = - 4x ( add 4x to both sides )

x² - 25 = 0 ( add 25 to both sides )

x² = 25 ( take the square root of both sides )

x = ± [tex]\sqrt{25}[/tex] = ± 5

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