10x^2-27x-800=1980

Simple and best practice solution for 10x^2-27x-800=1980 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 10x^2-27x-800=1980 equation:


Simplifying
10x2 + -27x + -800 = 1980

Reorder the terms:
-800 + -27x + 10x2 = 1980

Solving
-800 + -27x + 10x2 = 1980

Solving for variable 'x'.

Reorder the terms:
-800 + -1980 + -27x + 10x2 = 1980 + -1980

Combine like terms: -800 + -1980 = -2780
-2780 + -27x + 10x2 = 1980 + -1980

Combine like terms: 1980 + -1980 = 0
-2780 + -27x + 10x2 = 0

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

Divide each side by '10'.
-278 + -2.7x + x2 = 0

Move the constant term to the right:

Add '278' to each side of the equation.
-278 + -2.7x + 278 + x2 = 0 + 278

Reorder the terms:
-278 + 278 + -2.7x + x2 = 0 + 278

Combine like terms: -278 + 278 = 0
0 + -2.7x + x2 = 0 + 278
-2.7x + x2 = 0 + 278

Combine like terms: 0 + 278 = 278
-2.7x + x2 = 278

The x term is -2.7x.  Take half its coefficient (-1.35).
Square it (1.8225) and add it to both sides.

Add '1.8225' to each side of the equation.
-2.7x + 1.8225 + x2 = 278 + 1.8225

Reorder the terms:
1.8225 + -2.7x + x2 = 278 + 1.8225

Combine like terms: 278 + 1.8225 = 279.8225
1.8225 + -2.7x + x2 = 279.8225

Factor a perfect square on the left side:
(x + -1.35)(x + -1.35) = 279.8225

Calculate the square root of the right side: 16.727895863

Break this problem into two subproblems by setting 
(x + -1.35) equal to 16.727895863 and -16.727895863.

Subproblem 1

x + -1.35 = 16.727895863 Simplifying x + -1.35 = 16.727895863 Reorder the terms: -1.35 + x = 16.727895863 Solving -1.35 + x = 16.727895863 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.35' to each side of the equation. -1.35 + 1.35 + x = 16.727895863 + 1.35 Combine like terms: -1.35 + 1.35 = 0.00 0.00 + x = 16.727895863 + 1.35 x = 16.727895863 + 1.35 Combine like terms: 16.727895863 + 1.35 = 18.077895863 x = 18.077895863 Simplifying x = 18.077895863

Subproblem 2

x + -1.35 = -16.727895863 Simplifying x + -1.35 = -16.727895863 Reorder the terms: -1.35 + x = -16.727895863 Solving -1.35 + x = -16.727895863 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.35' to each side of the equation. -1.35 + 1.35 + x = -16.727895863 + 1.35 Combine like terms: -1.35 + 1.35 = 0.00 0.00 + x = -16.727895863 + 1.35 x = -16.727895863 + 1.35 Combine like terms: -16.727895863 + 1.35 = -15.377895863 x = -15.377895863 Simplifying x = -15.377895863

Solution

The solution to the problem is based on the solutions from the subproblems. x = {18.077895863, -15.377895863}

See similar equations:

| (-2x^2-16x-48)(5x-1)-(x^2-2x-24)(-10x+53)=0 | | -4m+8-2(m+3)=4m-8 | | (3x-7)(2x+9)= | | 2x-5+2x=2(2x-3) | | -189=7-4(7-6x) | | .03x=10000 | | 6+n/5=-4 | | -2(6+5x)-6=-6(3+6x) | | 6x+y=-33 | | .25k-2=.125k | | 6+2x=5x+9 | | -.75t=5 | | 8x+3=-x+3 | | b=11.3 | | -x^3-6x^2+12x+50=0 | | b=11.6 | | 1-8x-9=2x+10 | | 4x-2x+21=5x | | 5(y-1)=2y-17 | | 4-3y=3 | | 9x-4+3x=32 | | 11+-2(8+3p)=49 | | 3z+2=5 | | 70-2y=6-10y | | 6-y=21 | | 4x+9y=-19 | | 7y+(-3)=32 | | 5(4c-1)-1=15c+9 | | (p+3)(p-5)-2(p+3)=0 | | a+0.18=-6.3 | | 63x-9=16+63x | | 64=40x-4x^2 |

Equations solver categories