Posted by **meteka** on Tuesday, June 18, 2013 at 7:55pm.

solve the system of equations

y = x + 4

y = x^2 + 9x +16

- math -
**Kuai **, Tuesday, June 18, 2013 at 8:09pm
x^2 + 9x +16 = x + 4

x^2 + 9x -x + 16 - 4 = -(x+4)

x^2 + 8x + 12 = 0

(x +2)(x+6) = 0

solve for x

x + 2-2 = 0 -2

x = -2

x - 6 -6 = 0-6

x = -6

(-2, 2), (-6 ,-2)

- math -
**Kuai **, Tuesday, June 18, 2013 at 8:11pm
Typo

x + 6 -6 = 0-6

x = -6

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