d^2-4d-3d=0

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Solution for d^2-4d-3d=0 equation: 


Simplifying
d2 + -4d + -3d = 0

Reorder the terms:
-4d + -3d + d2 = 0

Combine like terms: -4d + -3d = -7d
-7d + d2 = 0

Solving
-7d + d2 = 0

Solving for variable 'd'.

Factor out the Greatest Common Factor (GCF), 'd'.
d(-7 + d) = 0


Subproblem 1
Set the factor 'd' equal to zero and attempt to solve:

Simplifying
d = 0

Solving
d = 0

Move all terms containing d to the left, all other terms to the right.

Simplifying
d = 0

Subproblem 2
Set the factor '(-7 + d)' equal to zero and attempt to solve:

Simplifying
-7 + d = 0

Solving
-7 + d = 0

Move all terms containing d to the left, all other terms to the right.

Add '7' to each side of the equation.
-7 + 7 + d = 0 + 7

Combine like terms: -7 + 7 = 0
0 + d = 0 + 7
d = 0 + 7

Combine like terms: 0 + 7 = 7
d = 7

Simplifying
d = 7
Solution
d = {0, 7}

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