Question

Q. Spesial Jawaban Terverifikasi.
Berapa nilai f(x) = 2x² - 6x + 9 saat x = 8.

Dilarang menjawab asal-asalan. Trims.​

Answer 1

Penjelasan dengan langkah-langkah:

Answer 2

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f(x) = 2x² - 6x + 9

f(8) = 2(8²) - 6(8) + 9

f(8) = 2(8 × 8) - 6(8) + 9

f(8) = 2(8 + 8 + 8 + 8 + 8 + 8 + 8 + 8) - 6(8) + 9

f(8) = 2(16 + 8 + 8 + 8 + 8 + 8 + 8) - 6(8) + 9

f(8) = 2(24 + 8 + 8 + 8 + 8 + 8) - 6(8) + 9

f(8) = 2(32 + 8 + 8 + 8 + 8) - 6(8) + 9

f(8) = 2(40 + 8 + 8 + 8) - 6(8) + 9

f(8) = 2(48 + 8 + 8) - 6(8) + 9

f(8) = 2(56 + 8) - 6(8) + 9

f(8) = 2(64) - 6(8) + 9

f(8) = (2 × 64) - 6(8) + 9

f(8) = (64 + 64) - 6(8) + 9

f(8) = 128 - 6(8) + 9

f(8) = 128 - (6 × 8) + 9

f(8) = 128 - (6 + 6 + 6 + 6 + 6 + 6 + 6 + 6) + 9

f(8) = 128 - (12 + 6 + 6 + 6 + 6 + 6 + 6) + 9

f(8) = 128 - (18 + 6 + 6 + 6 + 6 + 6) + 9

f(8) = 128 - (24 + 6 + 6 + 6 + 6) + 9

f(8) = 128 - (30 + 6 + 6 + 6) + 9

f(8) = 128 - (36 + 6 + 6) + 9

f(8) = 128 - (42 + 6) + 9

f(8) = 128 - 48 + 9

f(8) = 80 + 9

f(8) = 89

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