Posted by **bob** on Monday, October 29, 2007 at 9:44am.

1. 4x^2-13x=12

I need to solve this problem by factoring or using the quadtratic formula. I am stuck when using the quadtratic formula method. Please advise how to do this.

2. 5x^2+42=0

How many roots exist in this equation and what type are they?

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