21-04-2017
Mathematics

contestada

Use the equation in the box that says y^2=x^2....... idk how to solve this

Use the equation in the box that says y2x2 idk how to solve this class=

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Darksp33d Darksp33d

21-04-2017

So, you can use substitution to solve this. Since y=3+x you can plug it into the first equation. (3+x)^2+2x^2=22. Simplifying, 9+6x+x^2+2x^2=22, 3x^2 + 6x = 13. You can turn this into 3x^2 + 6x - 13 = 0. Simplify and find the zeroes.

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