diketahui fungsi f(x)=8-2x. hasil dari f(4a-2)

f(x) = 8-2x
f(4a-2) = ?


f(4a-2)
= 8 - 2(4a-2)
= 8 - 8a + 4
= 12 - 8a

Semoga membantu;)

f(x) = 8-2x
f (4a-2) = 8-2(4a-2)
= 8-8a-(-4)
= 8-8a+4
= -8a+12 atau 12-8a
*jika dicari sampai ketemu angkanya
-12 = -8a
a = -12/-8 = 3/2

f(4a-2) = -8a+12
= - 8(3/2)+12
= -12+12
= 0