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Q. Req ?[tex] \\ [/tex][tex] \tt \: f(x) = 3x

Berikut ini adalah pertanyaan dari myntr1 pada mata pelajaran Matematika untuk jenjang Sekolah Menengah Pertama

Q. Req ? \\
\tt \: f(x) = 3x \times {2}^{3} - 6
\tt \: f(8) = ...
\tt \: f(3) = ...
\tt \: f(4) = ...

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Jawaban dan Penjelasan

Berikut ini adalah pilihan jawaban terbaik dari pertanyaan diatas.

» Penyelesaian :

Diketahui :

f(x) = 3x × 2³ - 6

Ditanyakan :

f(8) = ?

f(3) = ?

f(4) = ?

Jawab :

f(8) = 3(8) × 2³ - 6

= 24 × ( 2.2.2 ) - 6

= 24 × 8 - 6

= ( 24 × 8 ) - 6

= 192 - 6

= 186

f(3) = 3(3) × 2³ - 6

= 9 × ( 2.2.2 ) - 6

= 9 × 8 - 6

= ( 9 × 8 ) - 6

= 72 - 6

= 66

f(4) = 3(4) × 2³ - 6

= 12 × ( 2.2.2 ) - 6

= 12 × 8 - 6

= ( 12 × 8 ) - 6

= 96 - 6

= 90

______________________________

f(x) = 3x × 2³ - 6f(8) = 3(8) × (2 × 2 × 2) - 6f(8) = 24 × (4 × 2) - 6f(8) = 24 × 8 - 6f(8) = 192 - 6f(8) = 186--f(x) = 3x × 2³ - 6f(3) = 3(3) × (2 × 2 × 2) - 6f(3) = 9 × (4 × 2) - 6f(3) = 9 × 8 - 6f(3) = 72 - 6f(3) = 66--f(x) = 3x × 2³ - 6f(4) = 3(4) × (2 × 2 × 2) - 6f(4) = 12 × (4 × 2) - 6f(4) = 12 × 8 - 6f(4) = 96 - 6f(4) = 90[tex] \\ [/tex]f(x) = 3x × 2³ - 6f(8) = 3(8) × (2 × 2 × 2) - 6f(8) = 24 × (4 × 2) - 6f(8) = 24 × 8 - 6f(8) = 192 - 6f(8) = 186--f(x) = 3x × 2³ - 6f(3) = 3(3) × (2 × 2 × 2) - 6f(3) = 9 × (4 × 2) - 6f(3) = 9 × 8 - 6f(3) = 72 - 6f(3) = 66--f(x) = 3x × 2³ - 6f(4) = 3(4) × (2 × 2 × 2) - 6f(4) = 12 × (4 × 2) - 6f(4) = 12 × 8 - 6f(4) = 96 - 6f(4) = 90[tex] \\ [/tex]f(x) = 3x × 2³ - 6f(8) = 3(8) × (2 × 2 × 2) - 6f(8) = 24 × (4 × 2) - 6f(8) = 24 × 8 - 6f(8) = 192 - 6f(8) = 186--f(x) = 3x × 2³ - 6f(3) = 3(3) × (2 × 2 × 2) - 6f(3) = 9 × (4 × 2) - 6f(3) = 9 × 8 - 6f(3) = 72 - 6f(3) = 66--f(x) = 3x × 2³ - 6f(4) = 3(4) × (2 × 2 × 2) - 6f(4) = 12 × (4 × 2) - 6f(4) = 12 × 8 - 6f(4) = 96 - 6f(4) = 90[tex] \\ [/tex]

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Last Update: Fri, 23 Sep 22
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