10d^2+17d-20=

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Solution for 10d^2+17d-20= equation:


Simplifying
10d2 + 17d + -20 = 0

Reorder the terms:
-20 + 17d + 10d2 = 0

Solving
-20 + 17d + 10d2 = 0

Solving for variable 'd'.

Factor a trinomial.
(-5 + -2d)(4 + -5d) = 0

Subproblem 1

Set the factor '(-5 + -2d)' equal to zero and attempt to solve: Simplifying -5 + -2d = 0 Solving -5 + -2d = 0 Move all terms containing d to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -2d = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -2d = 0 + 5 -2d = 0 + 5 Combine like terms: 0 + 5 = 5 -2d = 5 Divide each side by '-2'. d = -2.5 Simplifying d = -2.5

Subproblem 2

Set the factor '(4 + -5d)' equal to zero and attempt to solve: Simplifying 4 + -5d = 0 Solving 4 + -5d = 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 + -5d = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -5d = 0 + -4 -5d = 0 + -4 Combine like terms: 0 + -4 = -4 -5d = -4 Divide each side by '-5'. d = 0.8 Simplifying d = 0.8

Solution

d = {-2.5, 0.8}

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