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

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


Simplifying
(3x2 + 5x + -7)(9x2 + -8x + 4) = 0

Reorder the terms:
(-7 + 5x + 3x2)(9x2 + -8x + 4) = 0

Reorder the terms:
(-7 + 5x + 3x2)(4 + -8x + 9x2) = 0

Multiply (-7 + 5x + 3x2) * (4 + -8x + 9x2)
(-7(4 + -8x + 9x2) + 5x * (4 + -8x + 9x2) + 3x2 * (4 + -8x + 9x2)) = 0
((4 * -7 + -8x * -7 + 9x2 * -7) + 5x * (4 + -8x + 9x2) + 3x2 * (4 + -8x + 9x2)) = 0
((-28 + 56x + -63x2) + 5x * (4 + -8x + 9x2) + 3x2 * (4 + -8x + 9x2)) = 0
(-28 + 56x + -63x2 + (4 * 5x + -8x * 5x + 9x2 * 5x) + 3x2 * (4 + -8x + 9x2)) = 0
(-28 + 56x + -63x2 + (20x + -40x2 + 45x3) + 3x2 * (4 + -8x + 9x2)) = 0
(-28 + 56x + -63x2 + 20x + -40x2 + 45x3 + (4 * 3x2 + -8x * 3x2 + 9x2 * 3x2)) = 0
(-28 + 56x + -63x2 + 20x + -40x2 + 45x3 + (12x2 + -24x3 + 27x4)) = 0

Reorder the terms:
(-28 + 56x + 20x + -63x2 + -40x2 + 12x2 + 45x3 + -24x3 + 27x4) = 0

Combine like terms: 56x + 20x = 76x
(-28 + 76x + -63x2 + -40x2 + 12x2 + 45x3 + -24x3 + 27x4) = 0

Combine like terms: -63x2 + -40x2 = -103x2
(-28 + 76x + -103x2 + 12x2 + 45x3 + -24x3 + 27x4) = 0

Combine like terms: -103x2 + 12x2 = -91x2
(-28 + 76x + -91x2 + 45x3 + -24x3 + 27x4) = 0

Combine like terms: 45x3 + -24x3 = 21x3
(-28 + 76x + -91x2 + 21x3 + 27x4) = 0

Solving
-28 + 76x + -91x2 + 21x3 + 27x4 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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