0=-20s^2+1400s-12000

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Solution for 0=-20s^2+1400s-12000 equation:


Simplifying
0 = -20s2 + 1400s + -12000

Reorder the terms:
0 = -12000 + 1400s + -20s2

Solving
0 = -12000 + 1400s + -20s2

Solving for variable 's'.

Combine like terms: 0 + 12000 = 12000
12000 + -1400s + 20s2 = -12000 + 1400s + -20s2 + 12000 + -1400s + 20s2

Reorder the terms:
12000 + -1400s + 20s2 = -12000 + 12000 + 1400s + -1400s + -20s2 + 20s2

Combine like terms: -12000 + 12000 = 0
12000 + -1400s + 20s2 = 0 + 1400s + -1400s + -20s2 + 20s2
12000 + -1400s + 20s2 = 1400s + -1400s + -20s2 + 20s2

Combine like terms: 1400s + -1400s = 0
12000 + -1400s + 20s2 = 0 + -20s2 + 20s2
12000 + -1400s + 20s2 = -20s2 + 20s2

Combine like terms: -20s2 + 20s2 = 0
12000 + -1400s + 20s2 = 0

Factor out the Greatest Common Factor (GCF), '20'.
20(600 + -70s + s2) = 0

Factor a trinomial.
20((10 + -1s)(60 + -1s)) = 0

Ignore the factor 20.

Subproblem 1

Set the factor '(10 + -1s)' equal to zero and attempt to solve: Simplifying 10 + -1s = 0 Solving 10 + -1s = 0 Move all terms containing s to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -1s = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -1s = 0 + -10 -1s = 0 + -10 Combine like terms: 0 + -10 = -10 -1s = -10 Divide each side by '-1'. s = 10 Simplifying s = 10

Subproblem 2

Set the factor '(60 + -1s)' equal to zero and attempt to solve: Simplifying 60 + -1s = 0 Solving 60 + -1s = 0 Move all terms containing s to the left, all other terms to the right. Add '-60' to each side of the equation. 60 + -60 + -1s = 0 + -60 Combine like terms: 60 + -60 = 0 0 + -1s = 0 + -60 -1s = 0 + -60 Combine like terms: 0 + -60 = -60 -1s = -60 Divide each side by '-1'. s = 60 Simplifying s = 60

Solution

s = {10, 60}

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