Question

mohon bantuannya kk^^

Answer 1

Aku hanya bisa soal nomor 24 dan 25 saja

24.

f(x) = 5x - 2 = 13
5x = 13 + 2
5x = 15
x = 3

Nilai

x + 3 = 3 + 3 = 6

Opsi => C.

25.

f(x) = x + 2

f(x²) + 3f(x) - (f(x))²
= x² + 2 + 3( x + 2 ) - (x+2)²
= x² + 2 + 3x + 6 - x² + 4
= x² - x² + 2 + 6 + 4 + 3x
= 12 + 3x

Penyederhanaan

= 4 + x

= x + 4

Opsi => B.