Question

Anyone know how I got this one wrong?

Answer 1

http://prntscr.com/crgqfu

Answer 2

http://prntscr.com/crgqol

Answer 3

Thats all one question.

Answer 4

@zepdrix

Answer 5

@agent0smith

Answer 6

So you're doing some weird business like this?\[\large\rm f(x)=g(x)\]Your equations look correct,\[\large\rm -(x-8)^2=-1\]Now solve for x, ya?

Answer 7

Yup

Answer 8

Thats what I got, but for some odd reason its incorrect. :(

Answer 9

Multiply by -1,\[\large\rm (x-8)^2=1\]Square root,\[\large\rm x-8=\pm1\]Add 8,\[\large\rm x=8\pm1\]

Answer 10

I'm not sure how you're getting 6 and 8 for solutions.
hmmm

Answer 11

hmmm

Answer 12

8 plus 1 is 9,
8 minus 1 is 7, ya? :d

Answer 13

yup yup

Answer 14

To be honest, I don't understand these graphs.
They make no sense to me...

But there is only one graph showing those x-values...
Sooooo... ya :\

Answer 15

Obviously it's a parabola opening downward because of the negative coefficient on the squared term. I don't understand what they're trying to do here. Stupid question >.<

Answer 16

Yea, lol I agree.

Answer 17

Very weird question, but thanks for helping me!

Answer 18

At least now I know im not stupid lol.

Answer 19

The answer is x = 7 or x= 9

Answer 20

There's some issues with my device. Keep solving and then the browser refreshes the OS page
Anyway what I did is simplifying the expression to make it look like a quadratic and then use the famous quadratic formula to find the zeros

Answer 21

Thanks! :)