Question

help me these two questions please ​

Answer 1

Answer:

K=1 or 3/2

Step-by-step explanation:

k+1(2k+3-5k)+3k(5k-2k)+5k-1(2k-2k-3)=0

2k²+3k-5k²+2k+3-5k+15k²-6k²-15k+3+3=0

6k²-15k+9=0

2k²-5k+3=0

2k(k-1)-3(k-1)=0

(2k-3)(k-1)=o

∴k=3/2, k=1