Matematika Sekolah Menengah Pertama Q. Math
[+50]


Off Seminggu, abis Kouta :)
_______________________
f(x) = 7x - x² + 2x
f(5) = ?​

Q. Math
[+50]


Off Seminggu, abis Kouta :)
_______________________
f(x) = 7x - x² + 2x
f(5) = ?​

⏩ Penyelesaian soal:

Diketahui:

  • f( x ) = 7x - x² + 2x

Ditanya:

  • f( 5 )

Jawab:

f( x ) = 7x - x² + 2x

f( 5 ) = 7.5 - 5² + 2.5

f( 5 ) = 35 - ( 5 × 5 ) + 10

f( 5 ) = 35 - 25 + 10

f( 5 ) = 10 + 10

f( 5 ) = 20

Mohon dikoreksi :D

Penjelasan dengan langkah-langkah:

f(x) = 7x - x² + 2x

f(5) = 7·5 - 5² + 2·5

f(5) = 35 - 25 + 10

f(5) = 20

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