Q.
f(x) = 70x + 80 - 100
f(8) =
f(x) = 9x × 8 - 8²
f(5) =
:-;
f(x) = 70x + 80 - 100
f(8) =
f(x) = 9x × 8 - 8²
f(5) =
:-;
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f(x) = 70x + 80 - 100
f(8) = 70(8) + 80 - 100
f(8) = (70 × 8) + 80 - 100
f(8) = 560 + 80 - 100
f(8) = 640 - 100
f(8) = 540
f(x) = 9x × 8 - 8²
f(5) = 9(5) × 8 - (8 × 8)
f(5) = (9 × 5) × 8 - 64
f(5) = 45 × 8 - 64
f(5) = 360 - 64
f(5) = 296
Jawaban
Nomor 1
f(8) = 70(8) + 80 - 100
f(8) = (70 × 8) + 80 - 100
f(8) = 560 + 80 - 100
f(8) = 640 - 100
f(8) = 540
Nomor 2
f(5) = 9(5) × 8 - 8²
f(5) = 9(5) × 8 - (8 × 8)
f(5) = 9(5) × 8 - 64
f(5) = (9 × 5) × 8 - 64
f(5) = 45 × 8 - 64
f(5) = 360 - 64
f(5) = 296