starrkid06 starrkid06
  • 22-01-2021
  • Mathematics
contestada

Solve u2 =81 , where u is a real number show steps

Solve u2 81 where u is a real number show steps class=

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Amphitrite1040
Amphitrite1040 Amphitrite1040
  • 22-01-2021

Hey there!

[tex]\bold{u^2=81}[/tex]

Take your SQUARE ROOT

[tex]\bold{New\ equation: x\pm \sqrt{81}}\\ \\ \bold{\sqrt{81}=9}\\ \\ \bold{-\sqrt{-81}=-9}\\ \\ \\ \\ \boxed{\boxed{\bold{Answer: x=-9\ or\ x =9}}}\huge\checkmark[/tex]

Good luck on your assignment and enjoy your day!

~[tex]\frak{LoveYourselfFirst:)}[/tex]

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