Which of the following expressions when simplified equals x8 ?
A. x6 ÷ x2
B. x7 ÷ x
C. x8 ÷ x
D. x11 ÷ x3

Question

Which of the following expressions when simplified equals x8 ? 
	A.	x6 ÷ x2 
	B.	x7 ÷ x 
	C.	x8 ÷ x 
	D.	x11 ÷ x3

anonymous · Answer

C

anonymous · Answer

thank you

jack1 · Answer

...really...?

jack1 · Answer

$$\frac{ x8 }{ x }$$
is this right...?

anonymous · Answer

because 8 divided by 1 is eight. the x by itself represents 1.

jack1 · Answer

wait, sorry im a little lost... what does the x mean
is it (unknown number)
        (variable)
       or (multiplication sign)

anonymous · Answer

when there is a variable all alone without a coefficient or an exponent, like for example X. it equals 1. 1x. just always consider there to be a 1 infront of a variable that is alone.

jack1 · Answer

ok... so it's a variable...
why wouldnt the answer be 8 then...?
why didnt the x's cancel each other...?

anonymous · Answer

okay. pretend that the x's were not there. so all you would have is 8 divided by 1, because the alone x represents 1. 8/1. then that equals 8. then you can add the x's back on if it helps you. then you would have 8x or x8 either way you would want to put it, but teachers like the coefficient to go first.

jack1 · Answer

what i dont understand is that typically, when the number is written after the variable, it usually indicates (to the power of)

ie x8    usually means    $$x ^{8}$$

jack1 · Answer

so shouldnt the answer be "d"...?

anonymous · Answer

well the way that she typed it was x8... not x^8.  x^8 is like saying x to the power of 8. but it was not written that wat. therefor the equation is really x8 divided by x. which is the same as 8x divided by x. which is why the answer is C

anonymous · Answer

do you understand sweetie?

jack1 · Answer

...ok...thanks for explaining hey

anonymous · Answer

are you sure you understand? I can help you some more.

terenzreignz · Answer

agree with Jack... if it were a coefficient, I'm sure it would be to the left of the variable.

terenzreignz · Answer

Although, people really SHOULD at least get used to using the ^ sign for exponents.

anonymous · Answer

that's the only reason I thought that she meant 8x because I have had question on my quiz's where it will say x4 or something like that and it means the same at 4x.

anonymous · Answer

unless @maryjsgirl420 wants to correct her post, im sticking with my answer.