P(x)=-0.004x^2+2.8x-300

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Solution for P(x)=-0.004x^2+2.8x-300 equation: 


Simplifying
P(x) = -0.004x2 + 2.8x + -300

Multiply P * x
xP = -0.004x2 + 2.8x + -300

Reorder the terms:
xP = -300 + 2.8x + -0.004x2

Solving
xP = -300 + 2.8x + -0.004x2

Solving for variable 'x'.

Reorder the terms:
300 + -2.8x + xP + 0.004x2 = -300 + 2.8x + -0.004x2 + 300 + -2.8x + 0.004x2

Reorder the terms:
300 + -2.8x + xP + 0.004x2 = -300 + 300 + 2.8x + -2.8x + -0.004x2 + 0.004x2

Combine like terms: -300 + 300 = 0
300 + -2.8x + xP + 0.004x2 = 0 + 2.8x + -2.8x + -0.004x2 + 0.004x2
300 + -2.8x + xP + 0.004x2 = 2.8x + -2.8x + -0.004x2 + 0.004x2

Combine like terms: 2.8x + -2.8x = 0.0
300 + -2.8x + xP + 0.004x2 = 0.0 + -0.004x2 + 0.004x2
300 + -2.8x + xP + 0.004x2 = -0.004x2 + 0.004x2

Combine like terms: -0.004x2 + 0.004x2 = 0.000
300 + -2.8x + xP + 0.004x2 = 0.000

The solution to this equation could not be determined.

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