Posted by **Trevor** on Wednesday, May 12, 2010 at 2:14pm.

Hi,

I have had to factorise the equation

x^2 + x - 30 = 0, which I think I have worked the answer out as x =-6, x =5?

I now need to explain how I can use this answer to solve the equation

4x^2 +4x -120 =0

Any advice?

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