H(d)=-2d^2+6d+9

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Solution for H(d)=-2d^2+6d+9 equation: 


Simplifying
H(d) = -2d2 + 6d + 9

Multiply H * d
dH = -2d2 + 6d + 9

Reorder the terms:
dH = 9 + 6d + -2d2

Solving
dH = 9 + 6d + -2d2

Solving for variable 'd'.

Reorder the terms:
-9 + -6d + dH + 2d2 = 9 + 6d + -2d2 + -9 + -6d + 2d2

Reorder the terms:
-9 + -6d + dH + 2d2 = 9 + -9 + 6d + -6d + -2d2 + 2d2

Combine like terms: 9 + -9 = 0
-9 + -6d + dH + 2d2 = 0 + 6d + -6d + -2d2 + 2d2
-9 + -6d + dH + 2d2 = 6d + -6d + -2d2 + 2d2

Combine like terms: 6d + -6d = 0
-9 + -6d + dH + 2d2 = 0 + -2d2 + 2d2
-9 + -6d + dH + 2d2 = -2d2 + 2d2

Combine like terms: -2d2 + 2d2 = 0
-9 + -6d + dH + 2d2 = 0

The solution to this equation could not be determined.

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