1. (8 – 2)² = …

Jawab:
36
6,5

Penjelasan dengan langkah-langkah:

Nomor 1
∵ (p-q)² = p²-2pq+q²
∴ (8-2)² = 8²-2(8)(2)+2² =
64-16(2)+4 = 64-32+4 =
32+4 = 36
Atau ya.. (8-2)² = 6² = 36

Nomor 2
f(x) = 5x+(5/x)-6
f(2) = 5(2)+(5/2)-6
f(2) = 10-6+2+(1/2)
f(2) = 4+2+(1/2)
f(2) = 6 + 1/2
f(2) = 6,5

[[ KLF ]]

Jawaban:

✍️Jawab

Nomer 1

= (a – b)² = a² – 2ab + b²

= (8 – 2)² = 8² – 2(8)(2) + 2²

= 36

Nomer 2

f(x) = 5x + 5/x – 6

f(2) = 5(2) + 5/2 – 6

f(2) = 10 – 6 + 2 + 1/2

f(2) = 6,5