Question

2m^2+km-3
find all intergers of k so that the trinomial can be factored.

Answer 1

2*-3=-6
3-2=1
k=1,-1
6-1=5
6*-1=-6
k=5,-5

Answer 2

thank you so much! im ust confused as to how you did that? could you possibly explain?

Answer 3

2*-3=-6
k=a-b
so that a*b=-6

Answer 4

but k is b?

Answer 5

like how would i solve 7m^2+km-5 because i still dont understand it at all...

Answer 6

7*-5=35
thenk=34 or -34

Answer 7

correction above 7*-5=-35
a=35,b=-1,35*-1=-35
a=-35,b=1,-35*1=-35

Answer 8

if the product of a*c=-ve,then always subtract
if the product of a*c=+ve,then always break b

Answer 9

okay that makes a ittle more sense. thank you

Answer 10

i am talking of ax^2+bx+c=0

Answer 11

in the above example
k=2,-2
or k=34,-34
7-5=2,7*-5=-35
-7+5=-2,-7*5=-35
35-1=34,35*-1=-35
-35+1=-34,-35*1=-35

Answer 12

where did the 1 come from when you got 34?

Answer 13

make factors of35

Answer 14

35-1=34
-35+1=-34
7-5=2
-7+5=-2