(5x^2)-(7x-9)=

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Solution for (5x^2)-(7x-9)= equation:


Simplifying
(5x2) + -1(7x + -9) = 0

Reorder the terms:
(5x2) + -1(-9 + 7x) = 0
(5x2) + (-9 * -1 + 7x * -1) = 0
(5x2) + (9 + -7x) = 0

Reorder the terms:
9 + -7x + (5x2) = 0

Solving
9 + -7x + (5x2) = 0

Solving for variable 'x'.

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

Divide each side by '5'.
1.8 + -1.4x + x2 = 0

Move the constant term to the right:

Add '-1.8' to each side of the equation.
1.8 + -1.4x + -1.8 + x2 = 0 + -1.8

Reorder the terms:
1.8 + -1.8 + -1.4x + x2 = 0 + -1.8

Combine like terms: 1.8 + -1.8 = 0.0
0.0 + -1.4x + x2 = 0 + -1.8
-1.4x + x2 = 0 + -1.8

Combine like terms: 0 + -1.8 = -1.8
-1.4x + x2 = -1.8

The x term is -1.4x.  Take half its coefficient (-0.7).
Square it (0.49) and add it to both sides.

Add '0.49' to each side of the equation.
-1.4x + 0.49 + x2 = -1.8 + 0.49

Reorder the terms:
0.49 + -1.4x + x2 = -1.8 + 0.49

Combine like terms: -1.8 + 0.49 = -1.31
0.49 + -1.4x + x2 = -1.31

Factor a perfect square on the left side:
((x) + -0.7)((x) + -0.7) = -1.31

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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