(X^2-3x-4)+(7x^2-2x+5)=

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Solution for (X^2-3x-4)+(7x^2-2x+5)= equation: 


Simplifying
(X2 + -3x + -4) + (7x2 + -2x + 5) = 0

Reorder the terms:
(-4 + X2 + -3x) + (7x2 + -2x + 5) = 0

Remove parenthesis around (-4 + X2 + -3x)
-4 + X2 + -3x + (7x2 + -2x + 5) = 0

Reorder the terms:
-4 + X2 + -3x + (5 + -2x + 7x2) = 0

Remove parenthesis around (5 + -2x + 7x2)
-4 + X2 + -3x + 5 + -2x + 7x2 = 0

Reorder the terms:
-4 + 5 + X2 + -3x + -2x + 7x2 = 0

Combine like terms: -4 + 5 = 1
1 + X2 + -3x + -2x + 7x2 = 0

Combine like terms: -3x + -2x = -5x
1 + X2 + -5x + 7x2 = 0

Solving
1 + X2 + -5x + 7x2 = 0

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + X2 + -5x + -1 + 7x2 = 0 + -1

Reorder the terms:
1 + -1 + X2 + -5x + 7x2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + X2 + -5x + 7x2 = 0 + -1
X2 + -5x + 7x2 = 0 + -1

Combine like terms: 0 + -1 = -1
X2 + -5x + 7x2 = -1

Add '5x' to each side of the equation.
X2 + -5x + 5x + 7x2 = -1 + 5x

Combine like terms: -5x + 5x = 0
X2 + 0 + 7x2 = -1 + 5x
X2 + 7x2 = -1 + 5x

Add '-7x2' to each side of the equation.
X2 + 7x2 + -7x2 = -1 + 5x + -7x2

Combine like terms: 7x2 + -7x2 = 0
X2 + 0 = -1 + 5x + -7x2
X2 = -1 + 5x + -7x2

Simplifying
X2 = -1 + 5x + -7x2

Reorder the terms:
1 + X2 + -5x + 7x2 = -1 + 5x + -7x2 + 1 + -5x + 7x2

Reorder the terms:
1 + X2 + -5x + 7x2 = -1 + 1 + 5x + -5x + -7x2 + 7x2

Combine like terms: -1 + 1 = 0
1 + X2 + -5x + 7x2 = 0 + 5x + -5x + -7x2 + 7x2
1 + X2 + -5x + 7x2 = 5x + -5x + -7x2 + 7x2

Combine like terms: 5x + -5x = 0
1 + X2 + -5x + 7x2 = 0 + -7x2 + 7x2
1 + X2 + -5x + 7x2 = -7x2 + 7x2

Combine like terms: -7x2 + 7x2 = 0
1 + X2 + -5x + 7x2 = 0

The solution to this equation could not be determined.

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