## just to make sure: Multiply (4x + 1)(4x - 3)

Simplificatation, evaluation, linear equations, linear graphs, linear inequalities, basic word problems, etc.
teddybear101
Posts: 30
Joined: Tue Jan 12, 2010 5:54 pm
Location: Atlana, GA (cobb county)
Contact:

### just to make sure: Multiply (4x + 1)(4x - 3)

Hey im trying to study for my EOCTs(End of course tests) and i want to make sure that i get the easy stuff before studing the harder stuff. so my question that i have is simple but i think i need help with it, not cause im stupid but because i want to make sure im studying the right stuff.

here is the question: Multiply (4x + 1)(4x - 3)

so i think to solve this problem i need to use the foil method. wich is first inner outher last.

so here are my steps shown.

1. First- (4x X 4x)=16x squared
2. outer-(4x X -3)= - 12x
3.inner- (1 X 4x)= 4x
4. last- (1 X -3) = -3

after this step i think i am lost. can i please have help to answer the rest of the problem step by step. all help would be very appreatiated.

little_dragon
Posts: 226
Joined: Mon Dec 08, 2008 5:18 pm
Contact:

### Re: just to make sure

add the 2 like terms (the ones in the middle) then your done!

teddybear101
Posts: 30
Joined: Tue Jan 12, 2010 5:54 pm
Location: Atlana, GA (cobb county)
Contact:

### Re: just to make sure

wait so you mean i need to add 1 and 4x. im confused

stapel_eliz
Posts: 1628
Joined: Mon Dec 08, 2008 4:22 pm
Contact:
You multiplied and got four terms. The two middle terms are "like" terms. They need to be combined.

It sounds as though some background topics were missed. To understand the help you were given, try reviewing "like" terms, adding polynomials, and multiplying polynomials. Then the advice should make sense.

teddybear101
Posts: 30
Joined: Tue Jan 12, 2010 5:54 pm
Location: Atlana, GA (cobb county)
Contact:

### Re: just to make sure: Multiply (4x + 1)(4x - 3)

thank you for you your help