Part A : 9x^2 - x - 3
Part B : 5x^2 - 9x + 9
Part C : -5x^2 + 9x - 9
-12 > a
step-by-step explanation:
-11 > 1 + a
subtract 1 from each side
-11-1 > 1-1+a
(5x-1)^2= (5x)^2-2(5x)×1+(1)^2=25x^2-10x+1