F(x) = ¼ × 25⁴ – x!! + 2xf(5) = …​

f(5) = 1/4 × 25^4 – (5)!! + 2(5)

= 1/4 × 390.625 – (5 × 3) + 10

= 97.656,25 – 15 + 10

= 97.657 – 15 + 10

= 97.642 + 10

= 97.652

f(x) = ¼ × 25⁴ – x!! + 2x

f(5) = ¼ × 25⁴ – 5!! + 2(5)

f(5) = ¼ × 25(25)(25)(25) – 5(3)(1) + 2(5)

f(5) = ¼ × 625(25)(25) – 15(1) + 10

f(5) = ¼ × 15.625(25) – 15 + 10

f(5) = ¼ × 390.625 – 15 + 10

f(5) = 97.656,25 – 15 + 10

f(5) = 97.641,25 + 10

f(5) = 97.651,25

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