anonymous 5 years ago solve for x and y [x y] - [-y x]= [4 6] [-y x] [-y x] [-4 6] I have no clue what to do with this problem.

1. anonymous

this is a matrix problem

2. anonymous

U need to solve the left first then make an equation with the right...

3. anonymous

thats the problem when i was junior school...

4. anonymous

can you show me an example?

5. anonymous

( x^2 + y^2 )- (-xy-xy) = 48 x^2 + y^2 +2xy = 48

6. anonymous

that be (x+y)^2 = 48 (x+y) = $\sqrt{48}$

7. anonymous

Ok I see

8. anonymous

thank you