h(d)=-3.9d^2+13.1d+8.7

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Solution for h(d)=-3.9d^2+13.1d+8.7 equation: 


Simplifying
h(d) = -3.9d2 + 13.1d + 8.7

Multiply h * d
dh = -3.9d2 + 13.1d + 8.7

Reorder the terms:
dh = 8.7 + 13.1d + -3.9d2

Solving
dh = 8.7 + 13.1d + -3.9d2

Solving for variable 'd'.

Reorder the terms:
-8.7 + -13.1d + dh + 3.9d2 = 8.7 + 13.1d + -3.9d2 + -8.7 + -13.1d + 3.9d2

Reorder the terms:
-8.7 + -13.1d + dh + 3.9d2 = 8.7 + -8.7 + 13.1d + -13.1d + -3.9d2 + 3.9d2

Combine like terms: 8.7 + -8.7 = 0.0
-8.7 + -13.1d + dh + 3.9d2 = 0.0 + 13.1d + -13.1d + -3.9d2 + 3.9d2
-8.7 + -13.1d + dh + 3.9d2 = 13.1d + -13.1d + -3.9d2 + 3.9d2

Combine like terms: 13.1d + -13.1d = 0.0
-8.7 + -13.1d + dh + 3.9d2 = 0.0 + -3.9d2 + 3.9d2
-8.7 + -13.1d + dh + 3.9d2 = -3.9d2 + 3.9d2

Combine like terms: -3.9d2 + 3.9d2 = 0.0
-8.7 + -13.1d + dh + 3.9d2 = 0.0

The solution to this equation could not be determined.

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