Question

Please help me.. c:

What is one of the solutions to the following system of equations?

y2 + x2 = 53
y − x = 5

(−10, −5)

(−7, −2)

(7, 2)

(5, 10)

Answer 1

first you can make the numbers the same
y-x=5 can equal y^2-x^2=5^2
then you solve. Does this make sense? @raebaby420 ?

Answer 2

Make numbers the same?

Answer 3

@Jamierox4ev3r
How is yix=5
y^2-x^2 = 25 ???

Answer 4

well thats the way i learned it... because 5^2=25 does it not?

Answer 5

@raebaby420
All you've got to do is use some identities! :D
do you know the value of
(x+y)^2 and (x-y)^2 ?

Answer 6

Whatttt?

Answer 7

Math is a different language to me and all you guys are doing is confusing me even more :c

Answer 8

Haha..Sorry!
Know this =!
Inthis question we can eliminate the bottom 2 choices!

Answer 9

C) (x,y) = (7,2) but y-x = 5
And 2-7 = -5 [SO ELIMINATE THIS]

D) cannot be eliminated yet!

Answer 10

Do you know any Identity?

Answer 11

No..

Answer 12

Math is not my subject.. science im good at... math is me flunking!

Answer 13

Try this?
~
http://www.math.com/tables/algebra/polynomials.htm

Answer 14

Sure

Answer 15

s whats the awnser