Question

a^2-2ab-15b^2 factor completely.

Answer 1

this stuff is going to be the death of me for real

Answer 2

(a+3b)(a-5b)

Answer 3

just get agrip on the basics . and it will be very easy to do the sums

Answer 4

can you tell me if i am doing this right? i would start by fiding the two numbers that will add to -2 and mulitply to -15 which would be 3 and -5 then i just add on the b in the parenthesis?

Answer 5

yep.
but after you got the no

write the eq as

a^2+3ab-5ab-15b^2

Answer 6

i thought i only had to do that when the first term has a leading coeff?