[tex]\sf {(5x - 12)}^{7} = 2.187[/tex]
x = ......?
Penyelesaian :
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[tex] {(5x - 12)}^{7 } = 2187 \\5x - 12 = ^{7}\sqrt{2187} \\ 5x - 12 = 3 \\ 5x = 3 + 12 \\ 5x = 15 \\ x = 3[/tex]
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Kesimpulan :
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- Nilai x = 3
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Penjelasan dengan langkah-langkah:
[tex] {(5 \text{x} - 12)}^{7} = 2.187[/tex]
[tex]5 \text{x} - 12 = \sqrt[7]{2.187} [/tex]
[tex] {5 \text{x} - 12} = \sqrt[ \cancel7]{ {3}^{ \cancel7} } [/tex]
[tex]5 \text{x} - 12 = 3[/tex]
[tex]5 \text{x} = 12 + 3[/tex]
[tex]5 \text{x} = 15[/tex]
[tex] \text{x} = \bold3[/tex]
[answer.2.content]
