Matematika Sekolah Menengah Atas Q. +15––––––––––––––––––––––––––––––x² + 3 = 28x = ...––––––––––––––––––––––––––––––need poin ☑​

pedrogislasonulv – March 25, 2023

Q. +15

––––––––––––––––––––––––––––––

x² + 3 = 28
x = ...

––––––––––––––––––––––––––––––
need poin ☑​

Jawaban:

[tex]\boxed{\tt{x = -5 \: \: \: \: x = 5}}[/tex]

Penjelasan dengan langkah-langkah:

[tex]{\tt{{x}^{2} + 3 = 28}}[/tex]

[tex]{\tt{{x}^{2} = 28 - 3}}[/tex]

[tex]{\tt{x}^{2} = 25}[/tex]

[tex]{\tt{x = \sqrt{ {25}^{2}}}}[/tex]

[tex]{ \tt{x = 5}}[/tex]

_______________

[tex]\tt{{x}^{2} + 3 = 28}[/tex]

[tex]\tt{{x}^{2} = 28 - 3}[/tex]

[tex]\tt {x}^{2} = 25[/tex]

[tex]{\tt{x = \sqrt{25}}}[/tex]

[tex]{ \tt{x = - 5}}[/tex]

_______________

[tex]\rm{x = 5 \: \: x = - 5}[/tex]

______________

Persamaan Kuadrat

__________

[tex] \sf {x}^{2} + 3 = 28 \\ \sf {x}^{2} = 28 - 3 \\ \sf {x}^{2} = 25 \\ \sf x = ± \sqrt{25} \\ \\ \boxed{ \sf x = 5 \sf \: \: \: \: \: x = - 5}[/tex]

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