Question

please solve all the questions of this assignment

Answer 1

1. 3x²+4x+2k=0
x=-2
3(-2)²+4(-2)+2k=0
12-8+2k=0
2k=-4
k=-2


2. D= b²-4ac
D= (-3)²-4(1/2)(5)
D= 9-10
D= -1


3. 4x²-12x-9=0
D= 144+144
= 288
D>0
2 distinct real roots exist



4. kx²-kx+1=0
it has equal roots
therefore, D=0
D= b²-4ac
0= k²-4k
k²-4k=0
k(k-4) =0
k-4=0
k=0


5. is in the picture



hope it helps then plz mark as brainliest