Question 629846
I'll help you factor 8ab+20a-6b-15. Hopefully that will get you going (if not, let me know)




{{{8ab+20a-6b-15}}} Start with the given expression



{{{(8ab+20a)+(-6b-15)}}} Group the terms in two pairs



{{{4a(2b+5)-3(2b+5)}}} Factor out the GCF {{{4a}}} out of the first group. Factor out the GCF {{{-3}}} out of the second group



{{{(4a-3)(2b+5)}}} Since we have the common term {{{2b+5}}}, we can combine like terms



So {{{8ab+20a-6b-15}}} factors to {{{(4a-3)(2b+5)}}}



In other words, {{{8ab+20a-6b-15=(4a-3)(2b+5)}}} for all values of 'a' and 'b'


<font color="red">--------------------------------------------------------------------------------------------------------------</font>
If you need more help, email me at <a href="mailto:jim_thompson5910@hotmail.com?Subject=I%20Need%20Algebra%20Help">jim_thompson5910@hotmail.com</a>


Also, please consider visiting my website: <a href="http://www.freewebs.com/jimthompson5910/home.html">http://www.freewebs.com/jimthompson5910/home.html</a> and making a donation. Thank you


Jim
<font color="red">--------------------------------------------------------------------------------------------------------------</font>