4x^2-25x+78=0

Simple and best practice solution for 4x^2-25x+78=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 4x^2-25x+78=0 equation:


Simplifying
4x2 + -25x + 78 = 0

Reorder the terms:
78 + -25x + 4x2 = 0

Solving
78 + -25x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
19.5 + -6.25x + x2 = 0

Move the constant term to the right:

Add '-19.5' to each side of the equation.
19.5 + -6.25x + -19.5 + x2 = 0 + -19.5

Reorder the terms:
19.5 + -19.5 + -6.25x + x2 = 0 + -19.5

Combine like terms: 19.5 + -19.5 = 0.0
0.0 + -6.25x + x2 = 0 + -19.5
-6.25x + x2 = 0 + -19.5

Combine like terms: 0 + -19.5 = -19.5
-6.25x + x2 = -19.5

The x term is -6.25x.  Take half its coefficient (-3.125).
Square it (9.765625) and add it to both sides.

Add '9.765625' to each side of the equation.
-6.25x + 9.765625 + x2 = -19.5 + 9.765625

Reorder the terms:
9.765625 + -6.25x + x2 = -19.5 + 9.765625

Combine like terms: -19.5 + 9.765625 = -9.734375
9.765625 + -6.25x + x2 = -9.734375

Factor a perfect square on the left side:
(x + -3.125)(x + -3.125) = -9.734375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| -6+5k=-16 | | 2(5x+1)=3(x+12) | | -2x+1(-8)=2x+8 | | 6x-9+3x+24=90 | | 11=(x*y)+25 | | -3x+4y+7-2x-3-y= | | 6b^2+2b=140 | | y=3.7x+5.2 | | 12x-8=15x-15 | | 29x+7y=13 | | (W+5)(w-13)=0 | | 18x+5=8x-1+46 | | 4xsomething=32 | | 21/17.5=x/6 | | -4(x-6)=-3x-5 | | -6n-2n+4=16 | | -5=s-(3) | | -1+8x+46=8x-1 | | 12x=14(x+5) | | 5-2+7= | | 6(y+8)-8y=36 | | 4(2y-5r)=32 | | 8x-1=18x+5+46 | | 0.6x-5=0.1+7 | | 2p=-2p-1 | | 3.95+6s=35.93 | | 5-2+y=10 | | 17x+4+131=8x+2 | | 7+3x-2x=18 | | 6m-8-2m=-16 | | -2x+15+4x+15=-16 | | 3ax-55=44x+33 |

Equations solver categories