(5x^2-4x-1)(7x^2+9x+8)=0

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Solution for (5x^2-4x-1)(7x^2+9x+8)=0 equation:


Simplifying
(5x2 + -4x + -1)(7x2 + 9x + 8) = 0

Reorder the terms:
(-1 + -4x + 5x2)(7x2 + 9x + 8) = 0

Reorder the terms:
(-1 + -4x + 5x2)(8 + 9x + 7x2) = 0

Multiply (-1 + -4x + 5x2) * (8 + 9x + 7x2)
(-1(8 + 9x + 7x2) + -4x * (8 + 9x + 7x2) + 5x2 * (8 + 9x + 7x2)) = 0
((8 * -1 + 9x * -1 + 7x2 * -1) + -4x * (8 + 9x + 7x2) + 5x2 * (8 + 9x + 7x2)) = 0
((-8 + -9x + -7x2) + -4x * (8 + 9x + 7x2) + 5x2 * (8 + 9x + 7x2)) = 0
(-8 + -9x + -7x2 + (8 * -4x + 9x * -4x + 7x2 * -4x) + 5x2 * (8 + 9x + 7x2)) = 0
(-8 + -9x + -7x2 + (-32x + -36x2 + -28x3) + 5x2 * (8 + 9x + 7x2)) = 0
(-8 + -9x + -7x2 + -32x + -36x2 + -28x3 + (8 * 5x2 + 9x * 5x2 + 7x2 * 5x2)) = 0
(-8 + -9x + -7x2 + -32x + -36x2 + -28x3 + (40x2 + 45x3 + 35x4)) = 0

Reorder the terms:
(-8 + -9x + -32x + -7x2 + -36x2 + 40x2 + -28x3 + 45x3 + 35x4) = 0

Combine like terms: -9x + -32x = -41x
(-8 + -41x + -7x2 + -36x2 + 40x2 + -28x3 + 45x3 + 35x4) = 0

Combine like terms: -7x2 + -36x2 = -43x2
(-8 + -41x + -43x2 + 40x2 + -28x3 + 45x3 + 35x4) = 0

Combine like terms: -43x2 + 40x2 = -3x2
(-8 + -41x + -3x2 + -28x3 + 45x3 + 35x4) = 0

Combine like terms: -28x3 + 45x3 = 17x3
(-8 + -41x + -3x2 + 17x3 + 35x4) = 0

Solving
-8 + -41x + -3x2 + 17x3 + 35x4 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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