4(-x^2)+5(-x)-1=

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Solution for 4(-x^2)+5(-x)-1= equation:


Simplifying
4(-1x2) + 5(-1x) + -1 = 0

Remove parenthesis around (-1x2)
4 * -1x2 + 5(-1x) + -1 = 0

Multiply 4 * -1
-4x2 + 5(-1x) + -1 = 0

Remove parenthesis around (-1x)
-4x2 + 5 * -1x + -1 = 0

Multiply 5 * -1
-4x2 + -5x + -1 = 0

Reorder the terms:
-1 + -5x + -4x2 = 0

Solving
-1 + -5x + -4x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '-1'.
-1(1 + 5x + 4x2) = 0

Factor a trinomial.
-1((1 + x)(1 + 4x)) = 0

Ignore the factor -1.

Subproblem 1

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

Subproblem 2

Set the factor '(1 + 4x)' equal to zero and attempt to solve: Simplifying 1 + 4x = 0 Solving 1 + 4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 4x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 4x = 0 + -1 4x = 0 + -1 Combine like terms: 0 + -1 = -1 4x = -1 Divide each side by '4'. x = -0.25 Simplifying x = -0.25

Solution

x = {-1, -0.25}

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