(d)(d)+2d-8=0

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Solution for (d)(d)+2d-8=0 equation:


Simplifying
(d)(d) + 2d + -8 = 0

Multiply d * d
d2 + 2d + -8 = 0

Reorder the terms:
-8 + 2d + d2 = 0

Solving
-8 + 2d + d2 = 0

Solving for variable 'd'.

Factor a trinomial.
(-4 + -1d)(2 + -1d) = 0

Subproblem 1

Set the factor '(-4 + -1d)' equal to zero and attempt to solve: Simplifying -4 + -1d = 0 Solving -4 + -1d = 0 Move all terms containing d to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1d = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1d = 0 + 4 -1d = 0 + 4 Combine like terms: 0 + 4 = 4 -1d = 4 Divide each side by '-1'. d = -4 Simplifying d = -4

Subproblem 2

Set the factor '(2 + -1d)' equal to zero and attempt to solve: Simplifying 2 + -1d = 0 Solving 2 + -1d = 0 Move all terms containing d to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1d = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1d = 0 + -2 -1d = 0 + -2 Combine like terms: 0 + -2 = -2 -1d = -2 Divide each side by '-1'. d = 2 Simplifying d = 2

Solution

d = {-4, 2}

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