(39a^4-4a^3+2a^2-a-7)-(10a^4+3a^3-2a^2-a+8)=0

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Solution for (39a^4-4a^3+2a^2-a-7)-(10a^4+3a^3-2a^2-a+8)=0 equation: 


Simplifying
(39a4 + -4a3 + 2a2 + -1a + -7) + -1(10a4 + 3a3 + -2a2 + -1a + 8) = 0

Reorder the terms:
(-7 + -1a + 2a2 + -4a3 + 39a4) + -1(10a4 + 3a3 + -2a2 + -1a + 8) = 0

Remove parenthesis around (-7 + -1a + 2a2 + -4a3 + 39a4)
-7 + -1a + 2a2 + -4a3 + 39a4 + -1(10a4 + 3a3 + -2a2 + -1a + 8) = 0

Reorder the terms:
-7 + -1a + 2a2 + -4a3 + 39a4 + -1(8 + -1a + -2a2 + 3a3 + 10a4) = 0
-7 + -1a + 2a2 + -4a3 + 39a4 + (8 * -1 + -1a * -1 + -2a2 * -1 + 3a3 * -1 + 10a4 * -1) = 0
-7 + -1a + 2a2 + -4a3 + 39a4 + (-8 + 1a + 2a2 + -3a3 + -10a4) = 0

Reorder the terms:
-7 + -8 + -1a + 1a + 2a2 + 2a2 + -4a3 + -3a3 + 39a4 + -10a4 = 0

Combine like terms: -7 + -8 = -15
-15 + -1a + 1a + 2a2 + 2a2 + -4a3 + -3a3 + 39a4 + -10a4 = 0

Combine like terms: -1a + 1a = 0
-15 + 0 + 2a2 + 2a2 + -4a3 + -3a3 + 39a4 + -10a4 = 0
-15 + 2a2 + 2a2 + -4a3 + -3a3 + 39a4 + -10a4 = 0

Combine like terms: 2a2 + 2a2 = 4a2
-15 + 4a2 + -4a3 + -3a3 + 39a4 + -10a4 = 0

Combine like terms: -4a3 + -3a3 = -7a3
-15 + 4a2 + -7a3 + 39a4 + -10a4 = 0

Combine like terms: 39a4 + -10a4 = 29a4
-15 + 4a2 + -7a3 + 29a4 = 0

Solving
-15 + 4a2 + -7a3 + 29a4 = 0

Solving for variable 'a'.

The solution to this equation could not be determined.

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