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.Q.
Penjelasan dengan langkah-langkah:
- f(x) = x² + 2x × x(x)
- f(2) = 2² + 2(2) × 2(2)
- f(2) = (2.2) + (2.2) × (2.2)
- f(2) = 4 + (4 × 4)
- f(2) = 4 + 16
- f(2) = 20
<(( -KS- ))>
f(x) = x² + 2x × x(x)
f(2) = 2² + 2.2 × 2(2)
= 4 + 4 × 4
= 4 + 16
= 20