(-4x^5+9x^4-8x^3+8)(2x^5-7x^4+5x^3-6)=

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Solution for (-4x^5+9x^4-8x^3+8)(2x^5-7x^4+5x^3-6)= equation: 


Simplifying
(-4x5 + 9x4 + -8x3 + 8)(2x5 + -7x4 + 5x3 + -6) = 0

Reorder the terms:
(8 + -8x3 + 9x4 + -4x5)(2x5 + -7x4 + 5x3 + -6) = 0

Reorder the terms:
(8 + -8x3 + 9x4 + -4x5)(-6 + 5x3 + -7x4 + 2x5) = 0

Multiply (8 + -8x3 + 9x4 + -4x5) * (-6 + 5x3 + -7x4 + 2x5)
(8(-6 + 5x3 + -7x4 + 2x5) + -8x3 * (-6 + 5x3 + -7x4 + 2x5) + 9x4 * (-6 + 5x3 + -7x4 + 2x5) + -4x5 * (-6 + 5x3 + -7x4 + 2x5)) = 0
((-6 * 8 + 5x3 * 8 + -7x4 * 8 + 2x5 * 8) + -8x3 * (-6 + 5x3 + -7x4 + 2x5) + 9x4 * (-6 + 5x3 + -7x4 + 2x5) + -4x5 * (-6 + 5x3 + -7x4 + 2x5)) = 0
((-48 + 40x3 + -56x4 + 16x5) + -8x3 * (-6 + 5x3 + -7x4 + 2x5) + 9x4 * (-6 + 5x3 + -7x4 + 2x5) + -4x5 * (-6 + 5x3 + -7x4 + 2x5)) = 0
(-48 + 40x3 + -56x4 + 16x5 + (-6 * -8x3 + 5x3 * -8x3 + -7x4 * -8x3 + 2x5 * -8x3) + 9x4 * (-6 + 5x3 + -7x4 + 2x5) + -4x5 * (-6 + 5x3 + -7x4 + 2x5)) = 0
(-48 + 40x3 + -56x4 + 16x5 + (48x3 + -40x6 + 56x7 + -16x8) + 9x4 * (-6 + 5x3 + -7x4 + 2x5) + -4x5 * (-6 + 5x3 + -7x4 + 2x5)) = 0
(-48 + 40x3 + -56x4 + 16x5 + 48x3 + -40x6 + 56x7 + -16x8 + (-6 * 9x4 + 5x3 * 9x4 + -7x4 * 9x4 + 2x5 * 9x4) + -4x5 * (-6 + 5x3 + -7x4 + 2x5)) = 0
(-48 + 40x3 + -56x4 + 16x5 + 48x3 + -40x6 + 56x7 + -16x8 + (-54x4 + 45x7 + -63x8 + 18x9) + -4x5 * (-6 + 5x3 + -7x4 + 2x5)) = 0
(-48 + 40x3 + -56x4 + 16x5 + 48x3 + -40x6 + 56x7 + -16x8 + -54x4 + 45x7 + -63x8 + 18x9 + (-6 * -4x5 + 5x3 * -4x5 + -7x4 * -4x5 + 2x5 * -4x5)) = 0
(-48 + 40x3 + -56x4 + 16x5 + 48x3 + -40x6 + 56x7 + -16x8 + -54x4 + 45x7 + -63x8 + 18x9 + (24x5 + -20x8 + 28x9 + -8x10)) = 0

Reorder the terms:
(-48 + 40x3 + 48x3 + -56x4 + -54x4 + 16x5 + 24x5 + -40x6 + 56x7 + 45x7 + -16x8 + -63x8 + -20x8 + 18x9 + 28x9 + -8x10) = 0

Combine like terms: 40x3 + 48x3 = 88x3
(-48 + 88x3 + -56x4 + -54x4 + 16x5 + 24x5 + -40x6 + 56x7 + 45x7 + -16x8 + -63x8 + -20x8 + 18x9 + 28x9 + -8x10) = 0

Combine like terms: -56x4 + -54x4 = -110x4
(-48 + 88x3 + -110x4 + 16x5 + 24x5 + -40x6 + 56x7 + 45x7 + -16x8 + -63x8 + -20x8 + 18x9 + 28x9 + -8x10) = 0

Combine like terms: 16x5 + 24x5 = 40x5
(-48 + 88x3 + -110x4 + 40x5 + -40x6 + 56x7 + 45x7 + -16x8 + -63x8 + -20x8 + 18x9 + 28x9 + -8x10) = 0

Combine like terms: 56x7 + 45x7 = 101x7
(-48 + 88x3 + -110x4 + 40x5 + -40x6 + 101x7 + -16x8 + -63x8 + -20x8 + 18x9 + 28x9 + -8x10) = 0

Combine like terms: -16x8 + -63x8 = -79x8
(-48 + 88x3 + -110x4 + 40x5 + -40x6 + 101x7 + -79x8 + -20x8 + 18x9 + 28x9 + -8x10) = 0

Combine like terms: -79x8 + -20x8 = -99x8
(-48 + 88x3 + -110x4 + 40x5 + -40x6 + 101x7 + -99x8 + 18x9 + 28x9 + -8x10) = 0

Combine like terms: 18x9 + 28x9 = 46x9
(-48 + 88x3 + -110x4 + 40x5 + -40x6 + 101x7 + -99x8 + 46x9 + -8x10) = 0

Solving
-48 + 88x3 + -110x4 + 40x5 + -40x6 + 101x7 + -99x8 + 46x9 + -8x10 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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