Nomor 3 dan 4 .Mohon bantuannya

Semoga bermanfaat....

Mapel : Matematika
Materi : Aritmatika
Sub Materi : Logaritma
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3)...
5log 3 = p
5log 7 = q

45log 175√3
= 5log 175√3 / 5log 45
= 5log ( 5²×7√3 ) / 5log ( 5×3×3 )
= ( 2 . 5log 5 + 5log 7 + 5log 3^1/2 ) /
( 5log 5 + 2 . 5log 3 )
= ( 2(1) + q + p(1/2) ) ( 1 + 2p )
= ( 2 + q + p(1/2)) / ( 1 + 2p )
= ( 4 + 2q + p ) / ( 4p + 2 ) ✔️

4)...
Misal :
-x + 3 = a
x = 3 - a

f(g(x)) = 4x² - 26x + 32
f(- x + 3) = 4x² - 26x + 32

f(a) = 4 (3-a)² - 26 (3-a) + 32
f(a) = 4 ( 9 - 6a + a² ) - 78 + 26a + 32
f(a) = 36 - 24a + 4a² - 46 + 26a
f(a) = 4a² + 2a - 10
f(x) = 4x² + 2x - 10

f(1) = 4 (1)² + 2 (1) - 10
f(1) = 4 + 2 - 10
f(1) = - 4 ✔️

Semoga bermanfaat....
-Prisco