-2d^2+17d-28=3d^2-13d+17

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Solution for -2d^2+17d-28=3d^2-13d+17 equation:


Simplifying
-2d2 + 17d + -28 = 3d2 + -13d + 17

Reorder the terms:
-28 + 17d + -2d2 = 3d2 + -13d + 17

Reorder the terms:
-28 + 17d + -2d2 = 17 + -13d + 3d2

Solving
-28 + 17d + -2d2 = 17 + -13d + 3d2

Solving for variable 'd'.

Reorder the terms:
-28 + -17 + 17d + 13d + -2d2 + -3d2 = 17 + -13d + 3d2 + -17 + 13d + -3d2

Combine like terms: -28 + -17 = -45
-45 + 17d + 13d + -2d2 + -3d2 = 17 + -13d + 3d2 + -17 + 13d + -3d2

Combine like terms: 17d + 13d = 30d
-45 + 30d + -2d2 + -3d2 = 17 + -13d + 3d2 + -17 + 13d + -3d2

Combine like terms: -2d2 + -3d2 = -5d2
-45 + 30d + -5d2 = 17 + -13d + 3d2 + -17 + 13d + -3d2

Reorder the terms:
-45 + 30d + -5d2 = 17 + -17 + -13d + 13d + 3d2 + -3d2

Combine like terms: 17 + -17 = 0
-45 + 30d + -5d2 = 0 + -13d + 13d + 3d2 + -3d2
-45 + 30d + -5d2 = -13d + 13d + 3d2 + -3d2

Combine like terms: -13d + 13d = 0
-45 + 30d + -5d2 = 0 + 3d2 + -3d2
-45 + 30d + -5d2 = 3d2 + -3d2

Combine like terms: 3d2 + -3d2 = 0
-45 + 30d + -5d2 = 0

Factor out the Greatest Common Factor (GCF), '5'.
5(-9 + 6d + -1d2) = 0

Factor a trinomial.
5((-3 + d)(3 + -1d)) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(-3 + d)' equal to zero and attempt to solve: Simplifying -3 + d = 0 Solving -3 + d = 0 Move all terms containing d to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + d = 0 + 3 Combine like terms: -3 + 3 = 0 0 + d = 0 + 3 d = 0 + 3 Combine like terms: 0 + 3 = 3 d = 3 Simplifying d = 3

Subproblem 2

Set the factor '(3 + -1d)' equal to zero and attempt to solve: Simplifying 3 + -1d = 0 Solving 3 + -1d = 0 Move all terms containing d to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1d = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1d = 0 + -3 -1d = 0 + -3 Combine like terms: 0 + -3 = -3 -1d = -3 Divide each side by '-1'. d = 3 Simplifying d = 3

Solution

d = {3, 3}

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