(4x^2+5)(x-4)=

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Solution for (4x^2+5)(x-4)= equation:


Simplifying
(4x2 + 5)(x + -4) = 0

Reorder the terms:
(5 + 4x2)(x + -4) = 0

Reorder the terms:
(5 + 4x2)(-4 + x) = 0

Multiply (5 + 4x2) * (-4 + x)
(5(-4 + x) + 4x2 * (-4 + x)) = 0
((-4 * 5 + x * 5) + 4x2 * (-4 + x)) = 0
((-20 + 5x) + 4x2 * (-4 + x)) = 0
(-20 + 5x + (-4 * 4x2 + x * 4x2)) = 0
(-20 + 5x + (-16x2 + 4x3)) = 0
(-20 + 5x + -16x2 + 4x3) = 0

Solving
-20 + 5x + -16x2 + 4x3 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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