Question

2x^2+12x+k
k>0
Find all values of "k" so that the trinomial can be factored as two binomials using integers? show work.

Answer 1

ok break up 12 into as many sums as u can

Answer 2

0+12 1+11 2+10 and so on

Answer 3

1,12;2,6;3,4

Answer 4

ack!!...wrong thought lol

Answer 5

x+y = 12 looks like the equation of a line...

Answer 6

suppose ur pair is a+b, then if ab is even, u can evaluate k=ab/2

Answer 7

get it

Answer 8

no not really

Answer 9

just break up 12 into pairs of sums

Answer 10

like 0 + 12
1+11
2+10 and so on

Answer 11

and then multiply the 2 terms in each of the pairs and divide them by 2 to get k

Answer 12

i still dont get it.....

Answer 13

c wat do u do while factoring a quadratic eqn like this

Answer 14

lets say its x^2 + 5x +6

Answer 15

we dont use the quadratic equation at all until my junior year im only a freshmen

Answer 16

hey this is called a quadratic equation..u just dunno the name

Answer 17

my teacher doesnt want us useing quadratic equation to solve these

Answer 18

so when u factor this expression out...u first multiply the c oefficient of the first term with the third

Answer 19

u just lisn 2 me..were not using em

Answer 20

i am listening sorry im confused

Answer 21

no prob..

Answer 22

when u factor this expression out...u first multiply the c oefficient of the first term with the third..and then u break the middle term into a sum, for eg
if its x^2 + 5x + 6

the product is 1x6=6
so we break 5x into 2x + 3x, see 2.3 is 6 the same as 1.6 , dont we do that?

Answer 23

u get it??like i did so many yesterday

Answer 24

no i dont get it

Answer 25

then m really sorry..i dont know how tto explain it..it really breaks my heart..bt ill giv u some advice

Answer 26

try doing the factoring out questions urself...like i did ystrde..ul learn a lot..try noticing how ur factoring..

Answer 27

i dont even know how to start htem so kinda hard to do something when your teacher that gets paid to teach doesnt teach at all

Answer 28

shall i teach u?

Answer 29

frm d start?

Answer 30

you dont know any other way to explain this and im still confused