72.4k views
5 votes
If 32^2c=8^c what is the value of c? 1 2 3 5

User Gbru
by
7.1k points

2 Answers

3 votes

Answer:

the answer is 3

Explanation:

User Jamund Ferguson
by
6.2k points
3 votes

Answer:

  • as written, c ≈ 0.000979 or c = 4
  • alternate interpretation: c = 0

Explanation:

As written, you have an equation that cannot be solved algebraically.

(32^2)c = 8^c

1024c = 8^c

1024c -8^c = 0 . . . . . . rewrite as an expression compared to zero

A graphical solution shows two values for c: {0.000978551672551, 4}. We presume you're interested in c = 4.

___

If you mean ...

32^(2c) = 8^c

(2^5)^(2c) = (2^3)^c . . . . rewriting as powers of 2

2^(10c) = 2^(3c) . . . . . . . simplify

10c = 3c . . . . . . . . . . . . . .log base 2

7c = 0 . . . . . . . . . . . . . . . subtract 3c

c = 0 . . . . . . . . . . . . . . . . divide by 7

If 32^2c=8^c what is the value of c? 1 2 3 5-example-1
User AxleWack
by
7.8k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.