Question

-5k^2+10k-13=-8


a,0;two imaginary solution
b,0;0ne real solution
c,c,200;two real solution
d,0;two real solution

Answer 1

some one help me plz

Answer 2

Is this just the discriminant, again? Add 8 and substitute away. Let's see what you get,

Answer 3

Did you add 8, yet? This wil make the right hand side zero (0). Zero is what you need. Nothing else will do.

Answer 4

-5k^2+10k-13=-8 adding 8 on both sides gives

-5k^2+10k-13+8=-8+8
-5k^2+10k-5=0 divide both sides by 5 to get
-k^2+2k-1=0 multiply both sides by -1 gives
k^2-2k+1=0 you can now factor this or use quadratic formula to find k

Answer 5

k=?