Question

Solve

Answer 1

Solve \[8=2~^x+^4\]
x = –4
x = –1
x = 0
x = 7

Answer 2

\(\large \bf 8=2^{x+4}?\)

Answer 3

Yes. Sorry I didn't know how to do that.

Answer 4

\(\large \bf {
8=2^{x+4}\qquad {\color{brown}{ 2^3=8}}\qquad {\color{brown}{ 2^3}}=2^{x+4}\implies {\color{brown}{ 3}}=x+4
}\)

Answer 5

Now do we have to isolate the x?

Answer 6

well.. yes

Answer 7

x+4=3
x+4-4=3-4
x=-1

So the answer is B?

Answer 8

well, the answer is x = -1, yes

bear in mind that the choices are there as a guide
they must meet your answer, no the other way around

Answer 9

now, if there's a choice that has x = -1, then that'd be the proper one