michelle23956 michelle23956

21-01-2021
Mathematics

contestada

Hello pls help:2(x-3)^2 -4=28 (this is algebra btw)

Respuesta :

trippie0red trippie0red

21-01-2021

Answer: x=-1 or x=7

Step-by-step explanation: hope this helps!

Answer Link

786winkoaung 786winkoaung

21-01-2021

Answer:

x=7 x=-1

Step-by-step explanation:

2[tex](x-3)^{2}[/tex]-4=28

2[tex]x^{2}[/tex]-12x+18-4=28

2[tex]x^{2}[/tex]-12x+14=28

2[tex]x^{2}[/tex]-12x=28-14

2[tex]x^{2}[/tex]-12x-14=0

(x-7)(x+1)

x=7 , x=-1

Answer Link

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