Question

Use the Quadratic Formula to solve the equation.

-2x^2 - 5x + 5 = 0

Answer 1

\[\LARGE Quadratic~Formula: x = \frac{-b ± \sqrt{b^2 - 4ac}}{2a}\]\[\large where,\]\[\large a = -2\]\[\large b = -5\]\[\large c = 5\]

Answer 2

http://www.wolframalpha.com/input/?i=-2x%5E2+-+5x+%2B+5+%3D+0

Answer 3

\[x= -b \pm \sqrt{b^{2}-4ac}/2a\] put the values

Answer 4

Lopez.. my answers dont look like that on the site

Answer 5

I still dont know how to do this.:/

Answer 6

\[-2x^2 - 5x + 5 = 0\]multiply by \(-1\) to make life nicer get
\[2x^2 + 5x - 5 = 0\]use
\[x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\] with
\[a=2,b=-5,c=5\]

Answer 7

put the numbers in the slot,s, do the arithmetic carefully

\[x=\frac{-(-5)\pm\sqrt{(-5)^2-4\times 1\times 5}}{2\times 2}\]

Answer 8

click on the alternate answers the answers are there

Answer 9

i got x approx -3.26556 and x approx 0.765564

Answer 10

I tried to work it out and i still dont see my answer'

Answer 11

My answers look like this