Question

k^2+4k=96

Answer 1

think of two numbers which are factors of -96 and when added give +4

Answer 2

(k+12)(k-8)

Answer 3

how about -12 and 8 ot 12 and -8?

Answer 4

nerd has it 12 and -8

Answer 5

-12 and 8
because
k+12 = 0
k=-12
and
k-8=0
k=8

Answer 6

no -12 and 8 give -4

Answer 7

k^2+4k=96
k^2+4k-96=0
(k+12)(k-8)=0
--------
k+12=0
k=-12
---------
k-8=0
k=8
---------
possible answers are: -12 and 8
discard negatives and answer is: "8"

Answer 8

so?

Answer 9

fill it in
k^2+4k=96
8^2+4(8) = 96
yes!?

Answer 10

yes - i see now - we are at cross purposes - the roots are -12 and 8 - when i referred to 12 and -8
I was talking about the numbers which go into the brackets - the numbers which give
-96 and +4

Answer 11

ok. so we agree on the answer, right?

Answer 12

yep