3.6=-0.004d^2+0.04d

Simple and best practice solution for 3.6=-0.004d^2+0.04d equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 3.6=-0.004d^2+0.04d equation:


Simplifying
3.6 = -0.004d2 + 0.04d

Reorder the terms:
3.6 = 0.04d + -0.004d2

Solving
3.6 = 0.04d + -0.004d2

Solving for variable 'd'.

Reorder the terms:
3.6 + -0.04d + 0.004d2 = 0.04d + -0.04d + -0.004d2 + 0.004d2

Combine like terms: 0.04d + -0.04d = 0.00
3.6 + -0.04d + 0.004d2 = 0.00 + -0.004d2 + 0.004d2
3.6 + -0.04d + 0.004d2 = -0.004d2 + 0.004d2

Combine like terms: -0.004d2 + 0.004d2 = 0.000
3.6 + -0.04d + 0.004d2 = 0.000

Begin completing the square.  Divide all terms by
0.004 the coefficient of the squared term: 

Divide each side by '0.004'.
900 + -10d + d2 = 0

Move the constant term to the right:

Add '-900' to each side of the equation.
900 + -10d + -900 + d2 = 0 + -900

Reorder the terms:
900 + -900 + -10d + d2 = 0 + -900

Combine like terms: 900 + -900 = 0
0 + -10d + d2 = 0 + -900
-10d + d2 = 0 + -900

Combine like terms: 0 + -900 = -900
-10d + d2 = -900

The d term is -10d.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10d + 25 + d2 = -900 + 25

Reorder the terms:
25 + -10d + d2 = -900 + 25

Combine like terms: -900 + 25 = -875
25 + -10d + d2 = -875

Factor a perfect square on the left side:
(d + -5)(d + -5) = -875

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 4-x+5-3x=1 | | -1-2+3-4= | | 7(2b-5)= | | 5x+3x=7-9 | | 0.75x+17=3x-1 | | 2x-25=35 | | 3.6=-0.004d^2+0.004 | | 1+4n+3n=15 | | 9+g= | | 10x-60=5x+40 | | 21x=500 | | 11=-5-3y | | 2x^2+4x+2=90 | | 21x=500 | | .25x-1.2=1.45x+2.6 | | -2(x-1)-10x-12= | | 2-7+1-4= | | -4(1+2v)=v-13 | | 4xy=-9x+3 | | 41+a=-39 | | -4(1+2v)=v+6k | | 3000+12x=21 | | 4-3w=10 | | 44=5a-1 | | x^2+6x-10=30 | | 13x-24y=-18 | | 9x-30=4x-100 | | -4(x+3)-10x= | | -9y+11=24y | | 6(-6x-8)=120 | | 2-3+3-4= | | 12n=42 |

Equations solver categories