ALICEWONDERLAND09GO ALICEWONDERLAND09GO Mathematics Answered You are given the expression 40x^4y^3 − 25x^3y. Part A: Find a common factor for the expression that has a coefficient other than 1 and that contains at least one variable. Part B: Explain how you found the common factor. Part C: Rewrite the expression using the common factor you found in Part A. Show every step of your work.