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April 18, 2015

April 18, 2015

Posted by **Lisa** on Friday, December 28, 2012 at 1:56am.

Solve and verify the following equation:

13x2 + 35x + 21 = –12x2 – 25x – 15

- math -
**drwls**, Friday, December 28, 2012 at 2:41am4a^2 + 25 = –20a

4a^2 + 20a + 25 = 0

(2a +5)^2 = 0

a = -5/2

13x^2 + 35x + 21 = –12x^2 – 25x – 15

25x^2 + 60x +36 = 0

(5a +6)^2 = 0

a = -6/5

You do the verifying.

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