Please help me solve this question and explain it step by step, I need to understand it for future questions like this.

F. 20(3a-10)^2

Please give me brainliest

Step-by-step explanation:

180a^2-1200a+2000

Start by looking for a common factor: In this case, it's 20

From here, divide 20 from every number

180a^2/20= 9a^2

1200a/20= 60a

2000/20= 100

You end up with:

20(9a^2-60a+100)

But you can still simplify (9a^2-60a+100)

(9a^2-60a+100) simplifies to (3a-10)^2

So the answer is:

20(3a-10)^2

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2