dolphinia

...I don't get the point of posting this

Happy Valentine's Day 

Quadratics aren't exactly my strong spot... but I would play around with the equation a bit. Factor the left side?

In x^2 + 12x + 4, what two numbers multiply to 4 and add up to 12?

Hint: out of 6 total cards, 3 of them are red. For everyone to get at least one red card, what has to happen?

--> Make a list of what you know and see if it matches the 40% clue given in the problem.

Whoops, I didn't notice that. Thanks for catching it!

Correcting the mistake I think it would be $a=\sqrt[3]{-8}$

Ohh that was helpful. Thank you!

I won't mess with your expertise :)

but I understood the problem a little differently than how I think you did...?

Thanks for your help!