38X^2+3X-45=

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Solution for 38X^2+3X-45= equation:


Simplifying
38X2 + 3X + -45 = 0

Reorder the terms:
-45 + 3X + 38X2 = 0

Solving
-45 + 3X + 38X2 = 0

Solving for variable 'X'.

Begin completing the square.  Divide all terms by
38 the coefficient of the squared term: 

Divide each side by '38'.
-1.184210526 + 0.07894736842X + X2 = 0

Move the constant term to the right:

Add '1.184210526' to each side of the equation.
-1.184210526 + 0.07894736842X + 1.184210526 + X2 = 0 + 1.184210526

Reorder the terms:
-1.184210526 + 1.184210526 + 0.07894736842X + X2 = 0 + 1.184210526

Combine like terms: -1.184210526 + 1.184210526 = 0.000000000
0.000000000 + 0.07894736842X + X2 = 0 + 1.184210526
0.07894736842X + X2 = 0 + 1.184210526

Combine like terms: 0 + 1.184210526 = 1.184210526
0.07894736842X + X2 = 1.184210526

The X term is 0.07894736842X.  Take half its coefficient (0.03947368421).
Square it (0.001558171745) and add it to both sides.

Add '0.001558171745' to each side of the equation.
0.07894736842X + 0.001558171745 + X2 = 1.184210526 + 0.001558171745

Reorder the terms:
0.001558171745 + 0.07894736842X + X2 = 1.184210526 + 0.001558171745

Combine like terms: 1.184210526 + 0.001558171745 = 1.185768697745
0.001558171745 + 0.07894736842X + X2 = 1.185768697745

Factor a perfect square on the left side:
(X + 0.03947368421)(X + 0.03947368421) = 1.185768697745

Calculate the square root of the right side: 1.08893007

Break this problem into two subproblems by setting 
(X + 0.03947368421) equal to 1.08893007 and -1.08893007.

Subproblem 1

X + 0.03947368421 = 1.08893007 Simplifying X + 0.03947368421 = 1.08893007 Reorder the terms: 0.03947368421 + X = 1.08893007 Solving 0.03947368421 + X = 1.08893007 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-0.03947368421' to each side of the equation. 0.03947368421 + -0.03947368421 + X = 1.08893007 + -0.03947368421 Combine like terms: 0.03947368421 + -0.03947368421 = 0.00000000000 0.00000000000 + X = 1.08893007 + -0.03947368421 X = 1.08893007 + -0.03947368421 Combine like terms: 1.08893007 + -0.03947368421 = 1.04945638579 X = 1.04945638579 Simplifying X = 1.04945638579

Subproblem 2

X + 0.03947368421 = -1.08893007 Simplifying X + 0.03947368421 = -1.08893007 Reorder the terms: 0.03947368421 + X = -1.08893007 Solving 0.03947368421 + X = -1.08893007 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-0.03947368421' to each side of the equation. 0.03947368421 + -0.03947368421 + X = -1.08893007 + -0.03947368421 Combine like terms: 0.03947368421 + -0.03947368421 = 0.00000000000 0.00000000000 + X = -1.08893007 + -0.03947368421 X = -1.08893007 + -0.03947368421 Combine like terms: -1.08893007 + -0.03947368421 = -1.12840375421 X = -1.12840375421 Simplifying X = -1.12840375421

Solution

The solution to the problem is based on the solutions from the subproblems. X = {1.04945638579, -1.12840375421}

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