21s^2-62s+45=0

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Solution for 21s^2-62s+45=0 equation:


Simplifying
21s2 + -62s + 45 = 0

Reorder the terms:
45 + -62s + 21s2 = 0

Solving
45 + -62s + 21s2 = 0

Solving for variable 's'.

Factor a trinomial.
(9 + -7s)(5 + -3s) = 0

Subproblem 1

Set the factor '(9 + -7s)' equal to zero and attempt to solve: Simplifying 9 + -7s = 0 Solving 9 + -7s = 0 Move all terms containing s to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -7s = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -7s = 0 + -9 -7s = 0 + -9 Combine like terms: 0 + -9 = -9 -7s = -9 Divide each side by '-7'. s = 1.285714286 Simplifying s = 1.285714286

Subproblem 2

Set the factor '(5 + -3s)' equal to zero and attempt to solve: Simplifying 5 + -3s = 0 Solving 5 + -3s = 0 Move all terms containing s to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -3s = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3s = 0 + -5 -3s = 0 + -5 Combine like terms: 0 + -5 = -5 -3s = -5 Divide each side by '-3'. s = 1.666666667 Simplifying s = 1.666666667

Solution

s = {1.285714286, 1.666666667}

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