Answer:
What the heak doing a here
Step-by-step explanation:
May be that is f(2x+3).
f(2a + 3) = 8a² + 20a + 27
f(x) = 2x² + 4x - 3
f(2a + 3) = 2(2a + 3)² + 4(2a + 3) - 3
f(2a + 3) = 8a² + 12a + 18 + 8a + 12 - 3
