(5u^2-3u-2)+(u^2-7u+4)=

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Solution for (5u^2-3u-2)+(u^2-7u+4)= equation:


Simplifying
(5u2 + -3u + -2) + (u2 + -7u + 4) = 0

Reorder the terms:
(-2 + -3u + 5u2) + (u2 + -7u + 4) = 0

Remove parenthesis around (-2 + -3u + 5u2)
-2 + -3u + 5u2 + (u2 + -7u + 4) = 0

Reorder the terms:
-2 + -3u + 5u2 + (4 + -7u + u2) = 0

Remove parenthesis around (4 + -7u + u2)
-2 + -3u + 5u2 + 4 + -7u + u2 = 0

Reorder the terms:
-2 + 4 + -3u + -7u + 5u2 + u2 = 0

Combine like terms: -2 + 4 = 2
2 + -3u + -7u + 5u2 + u2 = 0

Combine like terms: -3u + -7u = -10u
2 + -10u + 5u2 + u2 = 0

Combine like terms: 5u2 + u2 = 6u2
2 + -10u + 6u2 = 0

Solving
2 + -10u + 6u2 = 0

Solving for variable 'u'.

Factor out the Greatest Common Factor (GCF), '2'.
2(1 + -5u + 3u2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(1 + -5u + 3u2)' equal to zero and attempt to solve: Simplifying 1 + -5u + 3u2 = 0 Solving 1 + -5u + 3u2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 0.3333333333 + -1.666666667u + u2 = 0 Move the constant term to the right: Add '-0.3333333333' to each side of the equation. 0.3333333333 + -1.666666667u + -0.3333333333 + u2 = 0 + -0.3333333333 Reorder the terms: 0.3333333333 + -0.3333333333 + -1.666666667u + u2 = 0 + -0.3333333333 Combine like terms: 0.3333333333 + -0.3333333333 = 0.0000000000 0.0000000000 + -1.666666667u + u2 = 0 + -0.3333333333 -1.666666667u + u2 = 0 + -0.3333333333 Combine like terms: 0 + -0.3333333333 = -0.3333333333 -1.666666667u + u2 = -0.3333333333 The u term is -1.666666667u. Take half its coefficient (-0.8333333335). Square it (0.6944444447) and add it to both sides. Add '0.6944444447' to each side of the equation. -1.666666667u + 0.6944444447 + u2 = -0.3333333333 + 0.6944444447 Reorder the terms: 0.6944444447 + -1.666666667u + u2 = -0.3333333333 + 0.6944444447 Combine like terms: -0.3333333333 + 0.6944444447 = 0.3611111114 0.6944444447 + -1.666666667u + u2 = 0.3611111114 Factor a perfect square on the left side: (u + -0.8333333335)(u + -0.8333333335) = 0.3611111114 Calculate the square root of the right side: 0.600925213 Break this problem into two subproblems by setting (u + -0.8333333335) equal to 0.600925213 and -0.600925213.

Subproblem 1

u + -0.8333333335 = 0.600925213 Simplifying u + -0.8333333335 = 0.600925213 Reorder the terms: -0.8333333335 + u = 0.600925213 Solving -0.8333333335 + u = 0.600925213 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '0.8333333335' to each side of the equation. -0.8333333335 + 0.8333333335 + u = 0.600925213 + 0.8333333335 Combine like terms: -0.8333333335 + 0.8333333335 = 0.0000000000 0.0000000000 + u = 0.600925213 + 0.8333333335 u = 0.600925213 + 0.8333333335 Combine like terms: 0.600925213 + 0.8333333335 = 1.4342585465 u = 1.4342585465 Simplifying u = 1.4342585465

Subproblem 2

u + -0.8333333335 = -0.600925213 Simplifying u + -0.8333333335 = -0.600925213 Reorder the terms: -0.8333333335 + u = -0.600925213 Solving -0.8333333335 + u = -0.600925213 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '0.8333333335' to each side of the equation. -0.8333333335 + 0.8333333335 + u = -0.600925213 + 0.8333333335 Combine like terms: -0.8333333335 + 0.8333333335 = 0.0000000000 0.0000000000 + u = -0.600925213 + 0.8333333335 u = -0.600925213 + 0.8333333335 Combine like terms: -0.600925213 + 0.8333333335 = 0.2324081205 u = 0.2324081205 Simplifying u = 0.2324081205

Solution

The solution to the problem is based on the solutions from the subproblems. u = {1.4342585465, 0.2324081205}

Solution

u = {1.4342585465, 0.2324081205}

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