OpenStudy (anonymous):

HELP!!! Use the quadratic formula to solve 2y2 – 5y = –2. A. {–½, 2} B. {–½, –2} C. {½, 2} D. {½, –2}

4 years ago
OpenStudy (anonymous):

@johnweldon1993

4 years ago
OpenStudy (whpalmer4):

First, arrange into the form \[ax^2+bx+c=0\]

4 years ago
OpenStudy (whpalmer4):

x, y, the letter doesn't matter...

4 years ago
OpenStudy (anonymous):

okay

4 years ago
OpenStudy (whpalmer4):

what do you get?

4 years ago
OpenStudy (anonymous):

my full answer was c

4 years ago
OpenStudy (whpalmer4):

Very good!

4 years ago
OpenStudy (anonymous):

yay thx you

4 years ago
OpenStudy (whpalmer4):

With a little practice, you'll be able to do them in your head, like I did :-)

4 years ago
OpenStudy (whpalmer4):

You'd be surprised at how much you can do in your head if you practice it a bit every day!

4 years ago