nuccioreggie one year ago If (44)x = 432, what is the value of x? 4 7 8 28

1. nuccioreggie

@Michele_Laino

2. nuccioreggie

I think its 8

3. welshfella

divide 432 by 44

4. SolomonZelman

is that $$\large\color{black}{ \displaystyle (44)^x=432 }$$ or $$\large\color{black}{ \displaystyle (44)\times x=432 }$$

5. SolomonZelman

and no the answer isn't a whole numb.

6. SolomonZelman

the quickest step for (44)^x is take log base 44, and use a calculator for the left side. for (44) times x, just divide as welshfella has told you too

7. SolomonZelman

to*

8. Nnesha

it's $\huge\rm (4^4)^x =4^{32}$ right ?

9. nuccioreggie

So A

10. Nnesha

which one is it ? is this ur question ??$\huge\rm (4^4)^x =4^{32}$

11. nuccioreggie

Yea

12. Nnesha

alright so now YOU tell me the answer remember we did this yesterday ?

13. nuccioreggie

I think its B

14. Nnesha

why ???

15. SolomonZelman

Nnesha, that is the question ?

16. nuccioreggie

Yea it is

17. Nnesha

yeah i guess^

18. Nnesha

what exponent rule you should apply ?

19. Nnesha
20. nuccioreggie

Ok can u do wat u did yester day wen u asked me what do i multiply to get this number,so it will be much eisier

21. Nnesha

you already know ^^^ it's a same method but with different numbers

22. SolomonZelman

ok... next time use an equation editor or denote an exponent using a caret, the ^ (Shift+6)

23. Nnesha

$\huge\rm x^m \times x^n = x^{m \times n}$ m=4 n=x m times n = 32 substitute 4 and then solve for n

24. nuccioreggie

Ok can u do wat u did yester day wen u asked me what do i multiply to get this number,so it will be much eisier

25. Nnesha

$$\color{blue}{\text{Originally Posted by}}$$ @nuccioreggie Ok can u do wat u did yester day wen u asked me what do i multiply to get this number,so it will be much eisier $$\color{blue}{\text{End of Quote}}$$ $$\color{blue}{\text{Originally Posted by}}$$ @Nnesha $\huge\rm x^m \times x^n = x^{m \times n}$ m=4 n=x m times n = 32 substitute 4 and then solve for n $$\color{blue}{\text{End of Quote}}$$

26. nuccioreggie

8

27. Nnesha

check ur answer $\huge\rm (4^4)^8 = 4^{ 4 \times 8} = 4^{?}$

28. nuccioreggie

8 ?

29. nuccioreggie

Im thinking

30. SolomonZelman

u don't accept messages, so I will say this right here. you maid a mistake when you quoted the poster. The law of multiplying x^n times x^m gives x^(m+n)

31. SolomonZelman

$$\Large\color{black}{ \displaystyle \rm x^m\times x^n=x^{m+n} }$$

32. Nnesha

$$\color{blue}{\text{Originally Posted by}}$$ @SolomonZelman u don't accept messages, so I will say this right here. you maid a mistake when you quoted the poster. The law of multiplying x^n times x^m gives x^(m+n) $$\color{blue}{\text{End of Quote}}$$ i posted the wrong one facepalm >.<

33. Nnesha

$\huge\rm (x^m)^n = x^{m \times n}$

34. nuccioreggie

Im so confused the answer is B right??

35. Nnesha

$$\color{blue}{\text{Originally Posted by}}$$ @Nnesha $\huge\rm x^m \times x^n = x^{m \times n}$ m=4 n=x m times n = 32 substitute 4 and then solve for n $$\color{blue}{\text{End of Quote}}$$ i mean to post this exponent rule $\huge\rm (x^m)^n = x^{m \times n}$ $(4^4)^x =4^32$

36. Nnesha

4^{32}**

37. Nnesha

check your answer $\huge\rm (4^4)^7 = 4^{32}$ is this right 4 times 7 =32? $\large\rm (4^4)^8 =4^{32}$ both sides are equal ?? 4 times 8=32 ?? $\huge\rm (4^4)^4 = 4^{32}$ 4 times 4 = 32 ?

38. Nnesha

when you multiply both exponents you should get 32 got it ? :-)

39. nuccioreggie

40. Nnesha

huh?? which one ??

41. nuccioreggie

If (44)x = 432, what is the value of x? 4 7 8 28

42. nuccioreggie

That question

43. Nnesha

i'm saying if you u don't know exponent rules then you can substitute all answer choices for x to check your answer

44. nuccioreggie

What is the answer to this question

45. Nnesha

you already know $\huge\rm (4^4)^x =4^{32}$ 4 times x = 32 you got it right!

46. Nnesha

4 times what =32 ?

47. nuccioreggie