(8x^2+6x-3)-(-2x^2+9x-17)=

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Solution for (8x^2+6x-3)-(-2x^2+9x-17)= equation:


Simplifying
(8x2 + 6x + -3) + -1(-2x2 + 9x + -17) = 0

Reorder the terms:
(-3 + 6x + 8x2) + -1(-2x2 + 9x + -17) = 0

Remove parenthesis around (-3 + 6x + 8x2)
-3 + 6x + 8x2 + -1(-2x2 + 9x + -17) = 0

Reorder the terms:
-3 + 6x + 8x2 + -1(-17 + 9x + -2x2) = 0
-3 + 6x + 8x2 + (-17 * -1 + 9x * -1 + -2x2 * -1) = 0
-3 + 6x + 8x2 + (17 + -9x + 2x2) = 0

Reorder the terms:
-3 + 17 + 6x + -9x + 8x2 + 2x2 = 0

Combine like terms: -3 + 17 = 14
14 + 6x + -9x + 8x2 + 2x2 = 0

Combine like terms: 6x + -9x = -3x
14 + -3x + 8x2 + 2x2 = 0

Combine like terms: 8x2 + 2x2 = 10x2
14 + -3x + 10x2 = 0

Solving
14 + -3x + 10x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
10 the coefficient of the squared term: 

Divide each side by '10'.
1.4 + -0.3x + x2 = 0.0

Move the constant term to the right:

Add '-1.4' to each side of the equation.
1.4 + -0.3x + -1.4 + x2 = 0.0 + -1.4

Reorder the terms:
1.4 + -1.4 + -0.3x + x2 = 0.0 + -1.4

Combine like terms: 1.4 + -1.4 = 0.0
0.0 + -0.3x + x2 = 0.0 + -1.4
-0.3x + x2 = 0.0 + -1.4

Combine like terms: 0.0 + -1.4 = -1.4
-0.3x + x2 = -1.4

The x term is -0.3x.  Take half its coefficient (-0.15).
Square it (0.0225) and add it to both sides.

Add '0.0225' to each side of the equation.
-0.3x + 0.0225 + x2 = -1.4 + 0.0225

Reorder the terms:
0.0225 + -0.3x + x2 = -1.4 + 0.0225

Combine like terms: -1.4 + 0.0225 = -1.3775
0.0225 + -0.3x + x2 = -1.3775

Factor a perfect square on the left side:
(x + -0.15)(x + -0.15) = -1.3775

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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