Question

it the root of are real and
equal find k
2x²_6x=k=0​

Answer 1

comparing this eq with standard form ax²+bx+c=0

we get , a= 2 , b= -6 ,c= k

for real and equal roots

D= 0

b²-4ac =0

(-6)²-4×2×k = 0

36 -8k =0

-8k= -36

k= 36/8 = 4

k=4