Answer:
The awnser is C
Step-by-step explanation:
Because you have to divode and subtracted the next equation
2k^2+3k-13=k^2+15
subtract k^2 -15 from each side
k^2 +3k -28=0
(k+7)(k-4)=0
k=-7 k=4
Answer: k= -7,4
1 1/3
17
24/t + t^2
Let t=3
24/3 + 3^2
8 + 9
