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

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


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

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

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

Multiply (-4 + x) * (7 + 8x + x2)
(-4(7 + 8x + x2) + x(7 + 8x + x2)) = 0
((7 * -4 + 8x * -4 + x2 * -4) + x(7 + 8x + x2)) = 0
((-28 + -32x + -4x2) + x(7 + 8x + x2)) = 0
(-28 + -32x + -4x2 + (7 * x + 8x * x + x2 * x)) = 0
(-28 + -32x + -4x2 + (7x + 8x2 + x3)) = 0

Reorder the terms:
(-28 + -32x + 7x + -4x2 + 8x2 + x3) = 0

Combine like terms: -32x + 7x = -25x
(-28 + -25x + -4x2 + 8x2 + x3) = 0

Combine like terms: -4x2 + 8x2 = 4x2
(-28 + -25x + 4x2 + x3) = 0

Solving
-28 + -25x + 4x2 + x3 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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