Solve (x + 4)2 – 3(x + 4) – 3 = 0 using substitution. u = a. x b. x + 4 c. 3(x + 4) d. (x + 4)^2 show a little bit of work so i know your answer isn't bs

I would say that the answer is B

Option B is correct.

u= x+4

Step-by-step explanation:

Solve the equation:

Using substitution:

Let u = x+4

then;

        ....[1]

For a quadratic equation ....[2], then the solution is given by:

On comparing equation [1] and [2] we have;

a = 1 , b = -3 and c = -3

then;

⇒

⇒

Substitute u = x+4

then;

⇒

Subtract 4 from both sides we have;

⇒

and

⇒

Therefore, the solution for the given equation are,

,

6. 104

7. 52/37

8. 2704

9. 140608

10. -52

11. |52|=52

12. 1/52

13. 156

14. 26

15. 40

16. 37

17. -364

18. 53 1/3

19. 50.96

20. 43 2/3

21. 78

22. 50.75

23. 47.63

24. 163.28

25. 10400

26. 338

27. 208

28. 2704 square inches

29. 312 square meters

30. don't know what its asking, tell me so i can tell you

31. 8490.56

32. 52 degrees would be an acute angle

33. 128 degrees

34. 20.8

35. 39

36. 208

2y+y=5

add 2y and y