Question

can someone check this one too??

Answer 1

Seems good to me!

Answer 2

What do you think you did wrong?

Answer 3

it is correct

Answer 4

Try and expand (x - 7)(x - 7) and if you get what you started with if you aren't sure.

Answer 5

yes!

Answer 6

wait, i want to give you a question.
x^2-5x+14=0
find the solution? this will clear your doubts.

Answer 7

yup. thats why i asked you to solve it.
you have done these questions where you have two different solutions right?

Answer 8

why cant 2,-7 be an option? or -7,2? how would you decide which one to chose?

Answer 9

ah, they are the same. i meant -2,7. :P

Answer 10

lol. i am sooo sorry. haha. i had to write x^2 -5x-14. :P

Answer 11

yeah. sorry again. :P

Answer 12

yep. :)