(5d-2)(d+5)=

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Solution for (5d-2)(d+5)= equation:


Simplifying
(5d + -2)(d + 5) = 0

Reorder the terms:
(-2 + 5d)(d + 5) = 0

Reorder the terms:
(-2 + 5d)(5 + d) = 0

Multiply (-2 + 5d) * (5 + d)
(-2(5 + d) + 5d * (5 + d)) = 0
((5 * -2 + d * -2) + 5d * (5 + d)) = 0
((-10 + -2d) + 5d * (5 + d)) = 0
(-10 + -2d + (5 * 5d + d * 5d)) = 0
(-10 + -2d + (25d + 5d2)) = 0

Combine like terms: -2d + 25d = 23d
(-10 + 23d + 5d2) = 0

Solving
-10 + 23d + 5d2 = 0

Solving for variable 'd'.

Factor a trinomial.
(-5 + -1d)(2 + -5d) = 0

Subproblem 1

Set the factor '(-5 + -1d)' equal to zero and attempt to solve: Simplifying -5 + -1d = 0 Solving -5 + -1d = 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 + -1d = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1d = 0 + 5 -1d = 0 + 5 Combine like terms: 0 + 5 = 5 -1d = 5 Divide each side by '-1'. d = -5 Simplifying d = -5

Subproblem 2

Set the factor '(2 + -5d)' equal to zero and attempt to solve: Simplifying 2 + -5d = 0 Solving 2 + -5d = 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 + -5d = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -5d = 0 + -2 -5d = 0 + -2 Combine like terms: 0 + -2 = -2 -5d = -2 Divide each side by '-5'. d = 0.4 Simplifying d = 0.4

Solution

d = {-5, 0.4}

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