(2x^2+5x-1)+(x^2-5x+7)=

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Solution for (2x^2+5x-1)+(x^2-5x+7)= equation:


Simplifying
(2x2 + 5x + -1) + (x2 + -5x + 7) = 0

Reorder the terms:
(-1 + 5x + 2x2) + (x2 + -5x + 7) = 0

Remove parenthesis around (-1 + 5x + 2x2)
-1 + 5x + 2x2 + (x2 + -5x + 7) = 0

Reorder the terms:
-1 + 5x + 2x2 + (7 + -5x + x2) = 0

Remove parenthesis around (7 + -5x + x2)
-1 + 5x + 2x2 + 7 + -5x + x2 = 0

Reorder the terms:
-1 + 7 + 5x + -5x + 2x2 + x2 = 0

Combine like terms: -1 + 7 = 6
6 + 5x + -5x + 2x2 + x2 = 0

Combine like terms: 5x + -5x = 0
6 + 0 + 2x2 + x2 = 0
6 + 2x2 + x2 = 0

Combine like terms: 2x2 + x2 = 3x2
6 + 3x2 = 0

Solving
6 + 3x2 = 0

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 3x2 = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 3x2 = 0 + -6
3x2 = 0 + -6

Combine like terms: 0 + -6 = -6
3x2 = -6

Divide each side by '3'.
x2 = -2

Simplifying
x2 = -2

Reorder the terms:
2 + x2 = -2 + 2

Combine like terms: -2 + 2 = 0
2 + x2 = 0

The solution to this equation could not be determined.

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