solve each equation.
1. 2x^2-16x=20
help meeee its for finals
If you have any trouble remembering the quadratic formula then you should listen to this a few times.
https://www.youtube.com/watch?v=O8ezDEk3qCg
2x2 - 16x = 20
Divide each term by 2
x2 - 8x = 10
Subtract 10 from both sides
x2 - 8x - 10 = 0
This doesn't factorize nicely, so use the quadratic formula to solve it.
$$x=\frac{-(-8)\pm \sqrt{(-8)^2-4\times1\times (-10)}}{2\times1}$$
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