2.97x^2-7.43x-4.46=0

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Solution for 2.97x^2-7.43x-4.46=0 equation:


Simplifying
2.97x2 + -7.43x + -4.46 = 0

Reorder the terms:
-4.46 + -7.43x + 2.97x2 = 0

Solving
-4.46 + -7.43x + 2.97x2 = 0

Solving for variable 'x'.

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

Divide each side by '2.97'.
-1.501683502 + -2.501683502x + x2 = 0

Move the constant term to the right:

Add '1.501683502' to each side of the equation.
-1.501683502 + -2.501683502x + 1.501683502 + x2 = 0 + 1.501683502

Reorder the terms:
-1.501683502 + 1.501683502 + -2.501683502x + x2 = 0 + 1.501683502

Combine like terms: -1.501683502 + 1.501683502 = 0.000000000
0.000000000 + -2.501683502x + x2 = 0 + 1.501683502
-2.501683502x + x2 = 0 + 1.501683502

Combine like terms: 0 + 1.501683502 = 1.501683502
-2.501683502x + x2 = 1.501683502

The x term is -2.501683502x.  Take half its coefficient (-1.250841751).
Square it (1.564605086) and add it to both sides.

Add '1.564605086' to each side of the equation.
-2.501683502x + 1.564605086 + x2 = 1.501683502 + 1.564605086

Reorder the terms:
1.564605086 + -2.501683502x + x2 = 1.501683502 + 1.564605086

Combine like terms: 1.501683502 + 1.564605086 = 3.066288588
1.564605086 + -2.501683502x + x2 = 3.066288588

Factor a perfect square on the left side:
(x + -1.250841751)(x + -1.250841751) = 3.066288588

Calculate the square root of the right side: 1.751082119

Break this problem into two subproblems by setting 
(x + -1.250841751) equal to 1.751082119 and -1.751082119.

Subproblem 1

x + -1.250841751 = 1.751082119 Simplifying x + -1.250841751 = 1.751082119 Reorder the terms: -1.250841751 + x = 1.751082119 Solving -1.250841751 + x = 1.751082119 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.250841751' to each side of the equation. -1.250841751 + 1.250841751 + x = 1.751082119 + 1.250841751 Combine like terms: -1.250841751 + 1.250841751 = 0.000000000 0.000000000 + x = 1.751082119 + 1.250841751 x = 1.751082119 + 1.250841751 Combine like terms: 1.751082119 + 1.250841751 = 3.00192387 x = 3.00192387 Simplifying x = 3.00192387

Subproblem 2

x + -1.250841751 = -1.751082119 Simplifying x + -1.250841751 = -1.751082119 Reorder the terms: -1.250841751 + x = -1.751082119 Solving -1.250841751 + x = -1.751082119 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.250841751' to each side of the equation. -1.250841751 + 1.250841751 + x = -1.751082119 + 1.250841751 Combine like terms: -1.250841751 + 1.250841751 = 0.000000000 0.000000000 + x = -1.751082119 + 1.250841751 x = -1.751082119 + 1.250841751 Combine like terms: -1.751082119 + 1.250841751 = -0.500240368 x = -0.500240368 Simplifying x = -0.500240368

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.00192387, -0.500240368}

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