(x-4)(x^2+7x-18)=0

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Solution for (x-4)(x^2+7x-18)=0 equation: 


Simplifying
(x + -4)(x2 + 7x + -18) = 0

Reorder the terms:
(-4 + x)(x2 + 7x + -18) = 0

Reorder the terms:
(-4 + x)(-18 + 7x + x2) = 0

Multiply (-4 + x) * (-18 + 7x + x2)
(-4(-18 + 7x + x2) + x(-18 + 7x + x2)) = 0
((-18 * -4 + 7x * -4 + x2 * -4) + x(-18 + 7x + x2)) = 0
((72 + -28x + -4x2) + x(-18 + 7x + x2)) = 0
(72 + -28x + -4x2 + (-18 * x + 7x * x + x2 * x)) = 0
(72 + -28x + -4x2 + (-18x + 7x2 + x3)) = 0

Reorder the terms:
(72 + -28x + -18x + -4x2 + 7x2 + x3) = 0

Combine like terms: -28x + -18x = -46x
(72 + -46x + -4x2 + 7x2 + x3) = 0

Combine like terms: -4x2 + 7x2 = 3x2
(72 + -46x + 3x2 + x3) = 0

Solving
72 + -46x + 3x2 + x3 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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