PDA

View Full Version : Factorise fully


jonny96
Feb 8, 2009, 09:49 AM
8x squared + 4x

Chin-Chee
Feb 8, 2009, 11:16 AM
68x, I'm pretty sure, you have 8 squared which equals 64x plus 4x which would equal 68x

here's a homework help hotline.

Rose-Hulman Institute of Technology's Homework Hotline offers a free math and science resource to help students.

1-877-ASK-ROSE or submit questions online at Homework Hotline (http://www.AskRose.org)

Sunday through Thursday, 7:00pm - 10:00pm.

galactus
Feb 8, 2009, 12:32 PM
8x^{2}+4x

No, for goodness sake it is not 68x.

Just factor out a 4x.

4x(2x+1)

There. That's all there is to it.

survivorboi
Feb 8, 2009, 01:39 PM
8x^{2}+4x

No, for goodness sake it is not 68x.

Just factor out a 4x.

4x(2x+1)

There. That's all there is to it.

WOW. I got it wrong, this is how I would have done it:

8x^2+4x is:

8+4=12

12x^2 was my answer... I was way off wasn't I?

By the way, galactus, how did you type the equations that way? How did you get the powers to be small and on top?