Simplify this expression. If it is already simplified, then write it as it is.
20x^2 + 14x^5 + 8x^2 + 4x^5

18x^5 +28x^2

Step-by-step explanation:

20x^2 + 14x^5 + 8x^2 + 4x^5

Combine like terms

20x^2  + 8x^2 + 4x^5+ 14x^5

28x^2 + 18x^5

We usually write the highest power term first

18x^5 +28x^2

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !