F(x) = 9x^3 + 2x^2 - 5x + 4 and g(x) = 5x^3 - 7x + 4. what is f(x) - g(x)?

the answer needs to be in factored form.

hi, i'm new to i just signed up today. i would like if someone could show me how to solve this problem and show me step by step . also to have patience teaching me because i am a very slow learner.
you.

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate.in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30

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