21m^2-10m-19=5

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Solution for 21m^2-10m-19=5 equation:


Simplifying
21m2 + -10m + -19 = 5

Reorder the terms:
-19 + -10m + 21m2 = 5

Solving
-19 + -10m + 21m2 = 5

Solving for variable 'm'.

Reorder the terms:
-19 + -5 + -10m + 21m2 = 5 + -5

Combine like terms: -19 + -5 = -24
-24 + -10m + 21m2 = 5 + -5

Combine like terms: 5 + -5 = 0
-24 + -10m + 21m2 = 0

Factor a trinomial.
(-6 + -7m)(4 + -3m) = 0

Subproblem 1

Set the factor '(-6 + -7m)' equal to zero and attempt to solve: Simplifying -6 + -7m = 0 Solving -6 + -7m = 0 Move all terms containing m to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -7m = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -7m = 0 + 6 -7m = 0 + 6 Combine like terms: 0 + 6 = 6 -7m = 6 Divide each side by '-7'. m = -0.8571428571 Simplifying m = -0.8571428571

Subproblem 2

Set the factor '(4 + -3m)' equal to zero and attempt to solve: Simplifying 4 + -3m = 0 Solving 4 + -3m = 0 Move all terms containing m to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -3m = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -3m = 0 + -4 -3m = 0 + -4 Combine like terms: 0 + -4 = -4 -3m = -4 Divide each side by '-3'. m = 1.333333333 Simplifying m = 1.333333333

Solution

m = {-0.8571428571, 1.333333333}

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