Answer:
Step-by-step explanation:
f(x)=x²+2x+1,
f (2a−3) = (2a-3)² +2(2a-3) +1
= 4a² - 12a +9 +4a -6 +1
f (2a−3) = 4a² - 8a +4
f (2a−3) /5 = (4a² - 8a +4)/5
