R(x)=-0.5x^2+40x-300

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Solution for R(x)=-0.5x^2+40x-300 equation: 


Simplifying
R(x) = -0.5x2 + 40x + -300

Multiply R * x
xR = -0.5x2 + 40x + -300

Reorder the terms:
xR = -300 + 40x + -0.5x2

Solving
xR = -300 + 40x + -0.5x2

Solving for variable 'x'.

Reorder the terms:
300 + -40x + xR + 0.5x2 = -300 + 40x + -0.5x2 + 300 + -40x + 0.5x2

Reorder the terms:
300 + -40x + xR + 0.5x2 = -300 + 300 + 40x + -40x + -0.5x2 + 0.5x2

Combine like terms: -300 + 300 = 0
300 + -40x + xR + 0.5x2 = 0 + 40x + -40x + -0.5x2 + 0.5x2
300 + -40x + xR + 0.5x2 = 40x + -40x + -0.5x2 + 0.5x2

Combine like terms: 40x + -40x = 0
300 + -40x + xR + 0.5x2 = 0 + -0.5x2 + 0.5x2
300 + -40x + xR + 0.5x2 = -0.5x2 + 0.5x2

Combine like terms: -0.5x2 + 0.5x2 = 0.0
300 + -40x + xR + 0.5x2 = 0.0

The solution to this equation could not be determined.

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