Question

Medal and Fan! <3
Which of the following is a solution of x2 - 7x = -5?
A) 7 plus or minus the square root of 69 divided by two
B) 7 plus or minus the square root of 29 divided by two.
C) negative 7 plus or minus the square root of 29 divided by two
D) negative 7 plus or minus the square root of 69 divided by two.

Answer 1

Do you know how to solve the equation first of all?

Answer 2

By using the quadratic formula..

Answer 3

I tried that.
x^2-7x=-5 so we would first subtract 7x by both sides making it x^2=7x-5 then we would divide by x^2 but im just not getting where we are getting the square roots in all of this. @xMissAlyCatx

Answer 4

wait

Answer 5

no okay so it would be x=-b sqrt of b^2-4ac / 2a

Answer 6

That's the quadratic formula, yes.

Answer 7

okay so everything would equal to 0

Answer 8

x^2-7x+5=0?

Answer 9

I really hate to tell you but I have to go to my next class. Try to @ a qualified helper :(

Answer 10

so would the x^2 be a, the -7x be b and the 5 be c?

Answer 11

oh okay thanks for your help