diketahui fungsi f ( 2x - 3 ) = 4x^2 -8x + 5

Kelas 10 Matematika
Bab 4 - Fungsi

f(2x - 3) = 4x² - 8x + 5
f(2 . x/2 - 3) = 4 . (x/2)² - 8 . x/2 + 5
f(x - 3) = 4x²/4 - 4x + 5
f(x + 3 - 3) = (x + 3)² - 4 (x + 3) + 5
f(x) = x² + 6x + 9 - 4x - 12 + 5
f(x) = x² + 2x + 2