(9x^2+3x+4)-(7x+3)=

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Solution for (9x^2+3x+4)-(7x+3)= equation:


Simplifying
(9x2 + 3x + 4) + -1(7x + 3) = 0

Reorder the terms:
(4 + 3x + 9x2) + -1(7x + 3) = 0

Remove parenthesis around (4 + 3x + 9x2)
4 + 3x + 9x2 + -1(7x + 3) = 0

Reorder the terms:
4 + 3x + 9x2 + -1(3 + 7x) = 0
4 + 3x + 9x2 + (3 * -1 + 7x * -1) = 0
4 + 3x + 9x2 + (-3 + -7x) = 0

Reorder the terms:
4 + -3 + 3x + -7x + 9x2 = 0

Combine like terms: 4 + -3 = 1
1 + 3x + -7x + 9x2 = 0

Combine like terms: 3x + -7x = -4x
1 + -4x + 9x2 = 0

Solving
1 + -4x + 9x2 = 0

Solving for variable 'x'.

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

Divide each side by '9'.
0.1111111111 + -0.4444444444x + x2 = 0

Move the constant term to the right:

Add '-0.1111111111' to each side of the equation.
0.1111111111 + -0.4444444444x + -0.1111111111 + x2 = 0 + -0.1111111111

Reorder the terms:
0.1111111111 + -0.1111111111 + -0.4444444444x + x2 = 0 + -0.1111111111

Combine like terms: 0.1111111111 + -0.1111111111 = 0.0000000000
0.0000000000 + -0.4444444444x + x2 = 0 + -0.1111111111
-0.4444444444x + x2 = 0 + -0.1111111111

Combine like terms: 0 + -0.1111111111 = -0.1111111111
-0.4444444444x + x2 = -0.1111111111

The x term is -0.4444444444x.  Take half its coefficient (-0.2222222222).
Square it (0.04938271604) and add it to both sides.

Add '0.04938271604' to each side of the equation.
-0.4444444444x + 0.04938271604 + x2 = -0.1111111111 + 0.04938271604

Reorder the terms:
0.04938271604 + -0.4444444444x + x2 = -0.1111111111 + 0.04938271604

Combine like terms: -0.1111111111 + 0.04938271604 = -0.06172839506
0.04938271604 + -0.4444444444x + x2 = -0.06172839506

Factor a perfect square on the left side:
(x + -0.2222222222)(x + -0.2222222222) = -0.06172839506

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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