2x^2-x-3=187

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Solution for 2x^2-x-3=187 equation:


Simplifying
2x2 + -1x + -3 = 187

Reorder the terms:
-3 + -1x + 2x2 = 187

Solving
-3 + -1x + 2x2 = 187

Solving for variable 'x'.

Reorder the terms:
-3 + -187 + -1x + 2x2 = 187 + -187

Combine like terms: -3 + -187 = -190
-190 + -1x + 2x2 = 187 + -187

Combine like terms: 187 + -187 = 0
-190 + -1x + 2x2 = 0

Factor a trinomial.
(-19 + -2x)(10 + -1x) = 0

Subproblem 1

Set the factor '(-19 + -2x)' equal to zero and attempt to solve: Simplifying -19 + -2x = 0 Solving -19 + -2x = 0 Move all terms containing x to the left, all other terms to the right. Add '19' to each side of the equation. -19 + 19 + -2x = 0 + 19 Combine like terms: -19 + 19 = 0 0 + -2x = 0 + 19 -2x = 0 + 19 Combine like terms: 0 + 19 = 19 -2x = 19 Divide each side by '-2'. x = -9.5 Simplifying x = -9.5

Subproblem 2

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

Solution

x = {-9.5, 10}

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