F(x)=-5x^2-8x

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Solution for F(x)=-5x^2-8x equation:


Simplifying
F(x) = -5x2 + -8x

Multiply F * x
xF = -5x2 + -8x

Reorder the terms:
xF = -8x + -5x2

Solving
xF = -8x + -5x2

Solving for variable 'x'.

Reorder the terms:
8x + xF + 5x2 = -8x + -5x2 + 8x + 5x2

Reorder the terms:
8x + xF + 5x2 = -8x + 8x + -5x2 + 5x2

Combine like terms: -8x + 8x = 0
8x + xF + 5x2 = 0 + -5x2 + 5x2
8x + xF + 5x2 = -5x2 + 5x2

Combine like terms: -5x2 + 5x2 = 0
8x + xF + 5x2 = 0

Factor out the Greatest Common Factor (GCF), 'x'.
x(8 + F + 5x) = 0

Subproblem 1

Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0

Subproblem 2

Set the factor '(8 + F + 5x)' equal to zero and attempt to solve: Simplifying 8 + F + 5x = 0 Solving 8 + F + 5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + F + -8 + 5x = 0 + -8 Reorder the terms: 8 + -8 + F + 5x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + F + 5x = 0 + -8 F + 5x = 0 + -8 Combine like terms: 0 + -8 = -8 F + 5x = -8 Add '-1F' to each side of the equation. F + -1F + 5x = -8 + -1F Combine like terms: F + -1F = 0 0 + 5x = -8 + -1F 5x = -8 + -1F Divide each side by '5'. x = -1.6 + -0.2F Simplifying x = -1.6 + -0.2F

Solution

x = {0, -1.6 + -0.2F}

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