Question

8k^2-19k+9
factor if possible and show work

Answer 1

Find factors of 8(9) that add up to be -19
if there aren't any then say not factorable over the integers

Answer 2

yeah it shld b -18k

Answer 3

how are you getting -18k??

Answer 4

-8(-9)=72 but -8-9=17
so that will not work
-4(-18)=72 but -4-18=-22
-12(-6)=72 but -12-6=-18
-24(-3)=72 but -24-3=-27
if you can't find any factors of a*c that add up to be b, then say not factorable but i have to go

Answer 5

i dont get that

Answer 6

im sayin d question myt b wrng....its only factorable into irrational nos

Answer 7

so then it would be a prime trinomial??

Answer 8

cause it cant be factored by integers

Answer 9

wts a prime trinomial?

Answer 10

book says a plynomial that cant be written as a product of two plynomials with integeral coefficients