Answer:
Answer is in bold.
Step-by-step explanation:
Factor 3x2a2 − 5xa2 − 2a2.
3x2a2 − 5xa2 − 2a2=
a2(3x2 − 5x − 2)=
a2((x-2)*(x+(1/3)))
Part B: Factor x2 − 10x + 25.
x2 − 10x + 25.= (x-5)*(x-5)
Part C: Factor x2 − 81.
x2 − 81=(x-9)*(x+9)
[tex]x^{2}[/tex]-81
[tex]x^{2}[/tex]+9x-9x