PleaseHelpMe729 PleaseHelpMe729

26-02-2021
Mathematics

contestada

Does this look correct?

Does this look correct class=

Respuesta :

rorycampbell0721 rorycampbell0721

26-02-2021

Answer:

Yes

Step-by-step explanation:

[tex]x^2+8x+9=0\\(x^2+8x+16)-16+9=0\\(x^2+8x+16)=7\\(x+4)^2=7\\[/tex]

[tex]x+4=[/tex] ±[tex]\sqrt{7}[/tex]

[tex]x=-4[/tex] ± [tex]\sqrt{7}[/tex]

So yes that looks right!

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