Question

Q.uteee
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f(x) = 83x × x² + 12x²
f(9) = ...
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Answer 1

f(x) = 83x × x² + 12x²f(9) = 83(9) × 9² + 12(9)²f(9) = 747 × 9² + 12(9)f(9) = 747 × 81 + 12(81)f(9) = 747 × 81 + 972f(9) = 60.507 + 972f(9) = 61.479Kesimpulan :f(9) = 61.479

Answer 2

Penyelesaian Soal :[tex] \\ [/tex][tex] \tt \: f(x) = 83x \times {x}^{2} + 12 {x}^{2} [/tex][tex] \tt \: f(9) = 83(9) \times {9}^{2} + 12( {9}^{2} )[/tex][tex] \tt \: f(9) = (83 + 83 + 83 + 83 + 83+ 83 + 83 + 83 + 83) \times (9 \times 9) + 12(9 \times 9)[/tex][tex] \tt \: f(9) = (166 + 83 + 83 + 83 + 83 + 83 + 83 + 83) \times 81 + 12(81)[/tex][tex] \tt \: f(9) = (249 + 83 + 83 + 83 + 83 + 83 + 83) \times 81 + 972[/tex][tex] \tt \: f(9) =( 332 + 83 + 83 + 83 + 83 + 83) \times 81 + 972[/tex][tex] \tt \: f(9) = (415 + 83 + 83 + 83 + 83) \times 81 + 972[/tex][tex] \tt \: f(9) = (498 + 89 + 89 + 89) \times 81 + 972[/tex][tex] \tt \: f(9) = (581 + 83 + 83) \times 81 + 972[/tex][tex] \tt \: f(9) = (664 + 83) \times 81 + 972[/tex][tex] \tt \: f(9) = 747 \times 81 + 972[/tex][tex] \tt \: f(9) = 60.507 + 972[/tex][tex] \tt \: f(9) = 61.479[/tex][tex] \\ [/tex]《S - N》