-5=-4x^2-5x-2

Simple and best practice solution for -5=-4x^2-5x-2 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 -5=-4x^2-5x-2 equation:


Simplifying
-5 = -4x2 + -5x + -2

Reorder the terms:
-5 = -2 + -5x + -4x2

Solving
-5 = -2 + -5x + -4x2

Solving for variable 'x'.

Combine like terms: -5 + 2 = -3
-3 + 5x + 4x2 = -2 + -5x + -4x2 + 2 + 5x + 4x2

Reorder the terms:
-3 + 5x + 4x2 = -2 + 2 + -5x + 5x + -4x2 + 4x2

Combine like terms: -2 + 2 = 0
-3 + 5x + 4x2 = 0 + -5x + 5x + -4x2 + 4x2
-3 + 5x + 4x2 = -5x + 5x + -4x2 + 4x2

Combine like terms: -5x + 5x = 0
-3 + 5x + 4x2 = 0 + -4x2 + 4x2
-3 + 5x + 4x2 = -4x2 + 4x2

Combine like terms: -4x2 + 4x2 = 0
-3 + 5x + 4x2 = 0

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

Divide each side by '4'.
-0.75 + 1.25x + x2 = 0

Move the constant term to the right:

Add '0.75' to each side of the equation.
-0.75 + 1.25x + 0.75 + x2 = 0 + 0.75

Reorder the terms:
-0.75 + 0.75 + 1.25x + x2 = 0 + 0.75

Combine like terms: -0.75 + 0.75 = 0.00
0.00 + 1.25x + x2 = 0 + 0.75
1.25x + x2 = 0 + 0.75

Combine like terms: 0 + 0.75 = 0.75
1.25x + x2 = 0.75

The x term is 1.25x.  Take half its coefficient (0.625).
Square it (0.390625) and add it to both sides.

Add '0.390625' to each side of the equation.
1.25x + 0.390625 + x2 = 0.75 + 0.390625

Reorder the terms:
0.390625 + 1.25x + x2 = 0.75 + 0.390625

Combine like terms: 0.75 + 0.390625 = 1.140625
0.390625 + 1.25x + x2 = 1.140625

Factor a perfect square on the left side:
(x + 0.625)(x + 0.625) = 1.140625

Calculate the square root of the right side: 1.068000468

Break this problem into two subproblems by setting 
(x + 0.625) equal to 1.068000468 and -1.068000468.

Subproblem 1

x + 0.625 = 1.068000468 Simplifying x + 0.625 = 1.068000468 Reorder the terms: 0.625 + x = 1.068000468 Solving 0.625 + x = 1.068000468 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.625' to each side of the equation. 0.625 + -0.625 + x = 1.068000468 + -0.625 Combine like terms: 0.625 + -0.625 = 0.000 0.000 + x = 1.068000468 + -0.625 x = 1.068000468 + -0.625 Combine like terms: 1.068000468 + -0.625 = 0.443000468 x = 0.443000468 Simplifying x = 0.443000468

Subproblem 2

x + 0.625 = -1.068000468 Simplifying x + 0.625 = -1.068000468 Reorder the terms: 0.625 + x = -1.068000468 Solving 0.625 + x = -1.068000468 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.625' to each side of the equation. 0.625 + -0.625 + x = -1.068000468 + -0.625 Combine like terms: 0.625 + -0.625 = 0.000 0.000 + x = -1.068000468 + -0.625 x = -1.068000468 + -0.625 Combine like terms: -1.068000468 + -0.625 = -1.693000468 x = -1.693000468 Simplifying x = -1.693000468

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.443000468, -1.693000468}

See similar equations:

| 2m-1=m | | 2x-17=x+34 | | 3(2x+1)-2(x-4)=19 | | X^6=83 | | 12x+1y=10 | | 19/10=y/40 | | 4-0.4k=4 | | 6(x-5)=3X-(X+2) | | 2/9=a/18 | | 5-8-2=-75 | | x^2-120x-3600=0 | | C=y+(h-5)w | | 3-l-8xl+8=80 | | (-7m^3n^2)(-3m^2n^3)= | | -(x-7)+0.6=2(x+9) | | 20=2v+7v | | (2x+15)+(3x+20)=180 | | m/40=6/5 | | 5x+16=2x-8 | | 8k=-96 | | n-33/5 | | -6n+13-14n+8=n-77 | | A+3A=192 | | 6+5x=-2 | | 7(x+2)=2(x+3) | | r=j | | 76x-17-3x=13+73x-30 | | 3x+5-2(x+4)+3= | | F-0.6=0.83 | | 3x-11-5x+8x-7=4x-18+2x | | 6x=5+4 | | 2(u+3)=-7u-12 |

Equations solver categories