Me very urgent 20 points part a: factor 3x2a2 − 5xa2 − 2a2. show your work. (4 points) part b: factor x2 − 10x + 25. show your work. (3 points) part c: factor x2 − 81. show your work. (3 points)

PartA Factor 3x^2a^2 − 5xa^2 − 2a^2.
 3x^2a^2 − 5xa^2 − 2a^2= 
 a^2(3x^2 − 5x − 2)=
 a^2((x-2)*(x+(1/3))) Part B: Factor x^2 − 10x + 25. x^2 − 10x + 25.= (x-5)*(x-5) Part C: Factor x^2 − 81. Show your work. x^2 − 81=(x-9)*(x+9)

It says in the questions that it is 6.5?