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October 22, 2014

October 22, 2014

Posted by **danni** on Wednesday, April 17, 2013 at 9:53pm.

y+x^2=-5x

y-5x=25

- non linear equations -
**Reiny**, Wednesday, April 17, 2013 at 11:01pmfrom the 2nd:

y = 5x + 25

sub into the first

5x+25 + x^2 = -5x

x^2 + 10x + 25 = 0

(x+5)^2 = 0

x+5 = 0

x = -5

then y = 5(-5) + 25 = 0

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