Solve 12x2 – 28x + 4 = 0. Quadratic formula? Quick help?

Question

anonymous · Answer

Simply sub a=12, b=-28 and c=4 into the quadratic formula, try it urself.

anonymous · Answer

I seem to be doing something wrong or not understand something....
I did try doing it myself and i get down to 28 +/- radical 592 over..which is way off from the answers available..

anonymous · Answer

ok let me try.

anonymous · Answer

sorry, over 24.

anonymous · Answer

Well is the answer 7+/- Sqrt 37 over 6?

anonymous · Answer

Yeah, that's one of the answers...obviously the right one. I just dont understand what I was doing wrong....

anonymous · Answer

okok. so did u get one of ur working out steps to be 28 +/- 4 Sqrt 37 over 24?

anonymous · Answer

Not exactly...I couldnt even get down to 37...i was at 592 somehow..but the rest was the same..here ill draw what I did..

anonymous · Answer

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