jackiedepaz926 jackiedepaz926

21-08-2019
Mathematics

contestada

(x - 5)(x + 1)
3(x + 1)
For what values of x are the two expressions equal?

Respuesta :

medicicowrider medicicowrider

21-08-2019

Answer:

x = -1 or x = 8

Step-by-step explanation:

Rewrite:

[tex] {x}^{2} - 4x - 5 = 3x + 3[/tex]

[tex] {x}^{2} - 7x - 8 = 0[/tex]

[tex](x - 8)(x + 1) = 0[/tex]

[tex]x - 8 = 0[/tex]

Or

[tex]x + 1 = 0[/tex]

Thus

[tex]x = - 1 \: or \: x = 8[/tex]

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