(3u-7v+7)(5u+7v)=

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


Simplifying
(3u + -7v + 7)(5u + 7v) = 0

Reorder the terms:
(7 + 3u + -7v)(5u + 7v) = 0

Multiply (7 + 3u + -7v) * (5u + 7v)
(7(5u + 7v) + 3u * (5u + 7v) + -7v * (5u + 7v)) = 0
((5u * 7 + 7v * 7) + 3u * (5u + 7v) + -7v * (5u + 7v)) = 0
((35u + 49v) + 3u * (5u + 7v) + -7v * (5u + 7v)) = 0
(35u + 49v + (5u * 3u + 7v * 3u) + -7v * (5u + 7v)) = 0

Reorder the terms:
(35u + 49v + (21uv + 15u2) + -7v * (5u + 7v)) = 0
(35u + 49v + (21uv + 15u2) + -7v * (5u + 7v)) = 0
(35u + 49v + 21uv + 15u2 + (5u * -7v + 7v * -7v)) = 0
(35u + 49v + 21uv + 15u2 + (-35uv + -49v2)) = 0

Reorder the terms:
(35u + 21uv + -35uv + 15u2 + 49v + -49v2) = 0

Combine like terms: 21uv + -35uv = -14uv
(35u + -14uv + 15u2 + 49v + -49v2) = 0

Solving
35u + -14uv + 15u2 + 49v + -49v2 = 0

Solving for variable 'u'.

The solution to this equation could not be determined.

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