kayleighsatterfield6
kayleighsatterfield6 kayleighsatterfield6
  • 09-03-2021
  • Mathematics
contestada

Solve for all values of x by factoring. x^2 - 3x – 1 = -3x​

Respuesta :

maria9955 maria9955
  • 09-03-2021

Answer:

x = 1, x = -1

Step-by-step explanation:

x^2 - 3x - 1 = -3x

Simplify...

x^2 - 3x - 1 + 3x = 0

x^2 - 1 = 0

Use this formula to factor: (a-b)(a+b) = a^2 - b^2

So x^2 - 1 will factor to...

(x-1)(x+1)

Solve for the equation: (x-1)(x+1) = 0

x - 1 =0

x = 1

x + 1 = 0

x = -1

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