0.785x^2-10x-1456=0

Simple and best practice solution for 0.785x^2-10x-1456=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 0.785x^2-10x-1456=0 equation:


Simplifying
0.785x2 + -10x + -1456 = 0

Reorder the terms:
-1456 + -10x + 0.785x2 = 0

Solving
-1456 + -10x + 0.785x2 = 0

Solving for variable 'x'.

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

Divide each side by '0.785'.
-1854.77707 + -12.7388535x + x2 = 0

Move the constant term to the right:

Add '1854.77707' to each side of the equation.
-1854.77707 + -12.7388535x + 1854.77707 + x2 = 0 + 1854.77707

Reorder the terms:
-1854.77707 + 1854.77707 + -12.7388535x + x2 = 0 + 1854.77707

Combine like terms: -1854.77707 + 1854.77707 = 0.00000
0.00000 + -12.7388535x + x2 = 0 + 1854.77707
-12.7388535x + x2 = 0 + 1854.77707

Combine like terms: 0 + 1854.77707 = 1854.77707
-12.7388535x + x2 = 1854.77707

The x term is -12.7388535x.  Take half its coefficient (-6.36942675).
Square it (40.56959712) and add it to both sides.

Add '40.56959712' to each side of the equation.
-12.7388535x + 40.56959712 + x2 = 1854.77707 + 40.56959712

Reorder the terms:
40.56959712 + -12.7388535x + x2 = 1854.77707 + 40.56959712

Combine like terms: 1854.77707 + 40.56959712 = 1895.34666712
40.56959712 + -12.7388535x + x2 = 1895.34666712

Factor a perfect square on the left side:
(x + -6.36942675)(x + -6.36942675) = 1895.34666712

Calculate the square root of the right side: 43.535579325

Break this problem into two subproblems by setting 
(x + -6.36942675) equal to 43.535579325 and -43.535579325.

Subproblem 1

x + -6.36942675 = 43.535579325 Simplifying x + -6.36942675 = 43.535579325 Reorder the terms: -6.36942675 + x = 43.535579325 Solving -6.36942675 + x = 43.535579325 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.36942675' to each side of the equation. -6.36942675 + 6.36942675 + x = 43.535579325 + 6.36942675 Combine like terms: -6.36942675 + 6.36942675 = 0.00000000 0.00000000 + x = 43.535579325 + 6.36942675 x = 43.535579325 + 6.36942675 Combine like terms: 43.535579325 + 6.36942675 = 49.905006075 x = 49.905006075 Simplifying x = 49.905006075

Subproblem 2

x + -6.36942675 = -43.535579325 Simplifying x + -6.36942675 = -43.535579325 Reorder the terms: -6.36942675 + x = -43.535579325 Solving -6.36942675 + x = -43.535579325 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.36942675' to each side of the equation. -6.36942675 + 6.36942675 + x = -43.535579325 + 6.36942675 Combine like terms: -6.36942675 + 6.36942675 = 0.00000000 0.00000000 + x = -43.535579325 + 6.36942675 x = -43.535579325 + 6.36942675 Combine like terms: -43.535579325 + 6.36942675 = -37.166152575 x = -37.166152575 Simplifying x = -37.166152575

Solution

The solution to the problem is based on the solutions from the subproblems. x = {49.905006075, -37.166152575}

See similar equations:

| Sinx=0.47 | | 36.52+70.47=s | | s=36.52+70.47 | | s=70.47+36.52 | | =6(x^2-3x)(5x^2-15x+9) | | 2x^2+y^2=57 | | 12s=20901(9) | | 6/1(1/5)=5/x | | 12s=20925(4) | | (3p^6)^3/(6p^3)^2= | | xy+9y-90=0 | | 0.07x-0.01y=4 | | (1/3)^1/2 | | y=.3x(x-4)(x-6.1) | | -0.9+-0.7= | | y=.2x(x-5)(x-9.1) | | 0=180+3t-t^2 | | 2x-5x^2=0 | | 4x+5=-2-7 | | 47/188=8/x | | log(x-9)11=1 | | -26/3-4.1/3 | | 3x^2-16x+4=0 | | -19=-6(4m+2)-7(1+6m) | | 4y-14=2y+4 | | 5+5(4-7v)=-4v-37 | | 35(x-1/6) | | -7=2u+5 | | 3u+7=13 | | 4+m=-4+8(1-8m) | | 3n=6(n-26) | | 2+m=-4+8(1-8m) |

Equations solver categories