Question

Q.

f(x) = 6x × x²
f(7) = ..?
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Answer 1

Penjelasan dengan langkah-langkah:

f(x) = 6x × x²

f(7) = 6(7) × 7²

f(7) = 42 × (7 × 7)

f(7) = 42 × 49

Answer 2

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f(x) = 6x × x²

f(7) = 6(7) × 7²

f(7) = (6 × 7) × 7²

f(7) = (6 + 6 + 6 + 6 + 6 + 6+ 6) × 7²

f(7) = (12 + 6 + 6 + 6 + 6 +6) × 7²

f(7) = (18 + 6 + 6 + 6 + 6) × 7²

f(7) = (24 + 6 + 6 + 6) × 7²

f(7) = (30 + 6 + 6) × 7²

f(7) = (36 + 6) × 7²

f(7) = 42 × 7²

f(7) = 42 × (7 × 7)

f(7) = 42 × (7 + 7 + 7 + 7 + 7 + 7 + 7)

f(7) = 42 × (14 + 7 + 7 + 7 + 7 + 7)

f(7) = 42 × (21 + 7 + 7 + 7 + 7)

f(7) = 42 × (28 + 7 + 7 + 7)

f(7) = 42 × (35 + 7 + 7)

f(7) = 42 × (42 + 7)

f(7) = 42 × 49

f(7) = 2.058

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