(7u-x)(3u+4x+5)=

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Solution for (7u-x)(3u+4x+5)= equation: 


Simplifying
(7u + -1x)(3u + 4x + 5) = 0

Reorder the terms:
(7u + -1x)(5 + 3u + 4x) = 0

Multiply (7u + -1x) * (5 + 3u + 4x)
(7u * (5 + 3u + 4x) + -1x * (5 + 3u + 4x)) = 0
((5 * 7u + 3u * 7u + 4x * 7u) + -1x * (5 + 3u + 4x)) = 0

Reorder the terms:
((35u + 28ux + 21u2) + -1x * (5 + 3u + 4x)) = 0
((35u + 28ux + 21u2) + -1x * (5 + 3u + 4x)) = 0
(35u + 28ux + 21u2 + (5 * -1x + 3u * -1x + 4x * -1x)) = 0

Reorder the terms:
(35u + 28ux + 21u2 + (-3ux + -5x + -4x2)) = 0
(35u + 28ux + 21u2 + (-3ux + -5x + -4x2)) = 0

Reorder the terms:
(35u + 28ux + -3ux + 21u2 + -5x + -4x2) = 0

Combine like terms: 28ux + -3ux = 25ux
(35u + 25ux + 21u2 + -5x + -4x2) = 0

Solving
35u + 25ux + 21u2 + -5x + -4x2 = 0

Solving for variable 'u'.

The solution to this equation could not be determined.

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