Is this equal to 0?
6d^2+5d=1

6d² + 5d = 1

6(-1)² + 5(-1) = 1

(6 × 1) + (-5) = 1

6 - 5 = 1

1 = 1

So d equals -1

d = -1 and 1/6

6d² + 5d - 1 = 0

6d² + 6d - 1d - 1 = 0

6d(d+1) -1(d+1) = 0

(6d - 1)(d+1) = 0

d+1 = 0

  d = -1

and d also is

6d - 1 = 0  

   6d = 1

     d = 1/6

i dony know

step-by-step explanation:

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)