(4u-2)(7+u)=0

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Solution for (4u-2)(7+u)=0 equation:


Simplifying
(4u + -2)(7 + u) = 0

Reorder the terms:
(-2 + 4u)(7 + u) = 0

Multiply (-2 + 4u) * (7 + u)
(-2(7 + u) + 4u * (7 + u)) = 0
((7 * -2 + u * -2) + 4u * (7 + u)) = 0
((-14 + -2u) + 4u * (7 + u)) = 0
(-14 + -2u + (7 * 4u + u * 4u)) = 0
(-14 + -2u + (28u + 4u2)) = 0

Combine like terms: -2u + 28u = 26u
(-14 + 26u + 4u2) = 0

Solving
-14 + 26u + 4u2 = 0

Solving for variable 'u'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-7 + 13u + 2u2) = 0

Factor a trinomial.
2((-7 + -1u)(1 + -2u)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-7 + -1u)' equal to zero and attempt to solve: Simplifying -7 + -1u = 0 Solving -7 + -1u = 0 Move all terms containing u to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -1u = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1u = 0 + 7 -1u = 0 + 7 Combine like terms: 0 + 7 = 7 -1u = 7 Divide each side by '-1'. u = -7 Simplifying u = -7

Subproblem 2

Set the factor '(1 + -2u)' equal to zero and attempt to solve: Simplifying 1 + -2u = 0 Solving 1 + -2u = 0 Move all terms containing u to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -2u = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2u = 0 + -1 -2u = 0 + -1 Combine like terms: 0 + -1 = -1 -2u = -1 Divide each side by '-2'. u = 0.5 Simplifying u = 0.5

Solution

u = {-7, 0.5}

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