Q.
..
f(x) = 4x + x² - 12
f(4) = ..
..
..
f(x) = 4x + x² - 12
f(4) = ..
..
Jawaban:
Penyelesaian :
- f(x) = 4x + x² - 12
- f(4) = 4(4) + 4² - 12
- f(4) = ( 4 + 4 + 4 + 4 ) + 4² - 12
- f(4) = ( 8 + 4 + 4 ) + 4² - 12
- f(4) = ( 12 + 4 ) + 4² - 12
- f(4) = 16 + 4² - 12
- f(4) = 16 + ( 4 × 4 ) - 12
- f(4) = 16 + 16 - 12
- f(4) = 32 - 12
- [tex]\bf\color{ff968a}{{{f(4) = 20}}}[/tex]
--------
maka nilai dari [tex]\bf\color{ff968a}{{{f(4)}}}[/tex] adalah [tex]\bf\color{ff968a}{{{ 20}}}[/tex]
f = 4
4x + x² - 12
4(4) + 4² - 12
16 + ( 4 × 4 ) - 12
16 + 16 - 12
32 - 12
20
[answer.2.content]
