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Algebra

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Need help with these--

6. Chase scored 14 points on Monday, and he doubled his score each day thereafter. How many points did he score on Thursday?

8. Find a solution to the following system of equations using elimination:
-5x + y = -5
-4x + 2y = 2

21. Factor completely: 6x^4 - 9x^3 - 36x^2 + 54x
a. 3x(x^2 - 6)(2x - 3)
b. 3x(x^2 + 6)(2x + 3)
c. 6x(x^2 - 6)(2x - 3)
d. 6x(x^2 + 6)(2x + 3)

30. Suppose the area of a square is x^2 - 6x + 9. What is the perimeter of the square?

Thanks
-MC

  • Algebra -

    6)112 8)x=-4/3,y=35/3 30)p=12

  • Algebra -

    Attempt problem 21 if you want help..what do they all have in common? That can be taken out. Post as new if you want it checked.

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