Help factoring
10-29a+10a^2

Question

Help factoring
10-29a+10a^2

shubhamsrg · Answer

100 = 25*4
29 = 25+4

anonymous · Answer

how would i write that as an answer

anonymous · Answer

would have to put in parentheses how would i write that?

anonymous · Answer

So you know your final answer needs to look like :$$(5a-**)(2a-**) $$
to get your first term back. From there think about the mutiples for the last term which are

10*1 and 5*2 so insert them in to that equation, multliply through, and see what works. So you get 
 $$(5a-10)(2a-1) = 10a^2 -25a +10$$
or

$$\[(5a-5)(2a-) = 10a^2 -29a +10$$\]

So a little guess and check is the last step. Just remember the factor by grouping method

anonymous · Answer

it said the correct answer is (2a-5)(5a-2) :( im so confused

anonymous · Answer

I'm sorry. The answer that you just gave is correct. I just didn't check my work too carefully, but what I told you still applies. Use the factor by grouping method and then a little guess and check. Sorry for the confusion. Hope this helps, ask more if you are still confused

anonymous · Answer

its ok im just confused in general :) it just changed my question up

anonymous · Answer

Ask and I will do my best to make things clearer