Question

write each expression as the product of two binomials. a^3-3a^2+3a-9. How do i do this? Not just the answer, explain please!

Answer 1

factor by grouping
a^3-3a^2+3a-9
split into the left two and the right two terms
(a^3-3a^2) (+3a-9)
factor out gcf of left term, factor out gcf of right term
a^2(a-3) +3(a-3)
factor the (a-3)
(a-3)(a^2+3)
viola, product of two binomials
google factor by grouping for tutorials of you need more in depth look at it.

Answer 2

Do you understand the steps?

Answer 3

Ah, it all seems so simple now! Yes i do, thank you for explaining!

Answer 4

sometimes you need to use the 1st and 3rd instead of the left two. You need to be able to factor a common term out of each, with practice you will begin to see which ones to pair up.

Answer 5

a good practice is to take your final terms and foil them to make sure you get what you started with.

Answer 6

I have heard of using the foil method, i will do that!

Answer 7

need a quick tutorial?

Answer 8

Yes please!