Diketahui f(2x-3) = 8x + 1. Nilai dr f(-4) adalah...

Langsung aja y

f(2x -3) = 8x + 1
Misal :
2x - 3 = a
x = a+3 / 2

Soal menjadi →
f(a) = 8(a+3 / 2) + 1
f(a) = 4(a+3) + 1
f(a) = 4a + 12 + 1

f(-4) = 4(-4) + 13
f(-4) = -16 + 13
f(-4) = -3

Semoga berguna +_+

f(2x -3) = 8x + 1
Misal :
2x - 3 = a
x = a+3 / 2

f(a) = 8(a+3 / 2) + 1
f(a) = 4(a+3) + 1
f(a) = 4a + 12 + 1

f(-4) = 4(-4) + 13
f(-4) = -16 + 13
f(-4) = -3