4x^2-15x+43=9+8

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Solution for 4x^2-15x+43=9+8 equation:


Simplifying
4x2 + -15x + 43 = 9 + 8

Reorder the terms:
43 + -15x + 4x2 = 9 + 8

Combine like terms: 9 + 8 = 17
43 + -15x + 4x2 = 17

Solving
43 + -15x + 4x2 = 17

Solving for variable 'x'.

Reorder the terms:
43 + -17 + -15x + 4x2 = 17 + -17

Combine like terms: 43 + -17 = 26
26 + -15x + 4x2 = 17 + -17

Combine like terms: 17 + -17 = 0
26 + -15x + 4x2 = 0

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

Divide each side by '4'.
6.5 + -3.75x + x2 = 0

Move the constant term to the right:

Add '-6.5' to each side of the equation.
6.5 + -3.75x + -6.5 + x2 = 0 + -6.5

Reorder the terms:
6.5 + -6.5 + -3.75x + x2 = 0 + -6.5

Combine like terms: 6.5 + -6.5 = 0.0
0.0 + -3.75x + x2 = 0 + -6.5
-3.75x + x2 = 0 + -6.5

Combine like terms: 0 + -6.5 = -6.5
-3.75x + x2 = -6.5

The x term is -3.75x.  Take half its coefficient (-1.875).
Square it (3.515625) and add it to both sides.

Add '3.515625' to each side of the equation.
-3.75x + 3.515625 + x2 = -6.5 + 3.515625

Reorder the terms:
3.515625 + -3.75x + x2 = -6.5 + 3.515625

Combine like terms: -6.5 + 3.515625 = -2.984375
3.515625 + -3.75x + x2 = -2.984375

Factor a perfect square on the left side:
(x + -1.875)(x + -1.875) = -2.984375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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