4x^2+21x+22=-4x+4

Simple and best practice solution for 4x^2+21x+22=-4x+4 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+21x+22=-4x+4 equation:


Simplifying
4x2 + 21x + 22 = -4x + 4

Reorder the terms:
22 + 21x + 4x2 = -4x + 4

Reorder the terms:
22 + 21x + 4x2 = 4 + -4x

Solving
22 + 21x + 4x2 = 4 + -4x

Solving for variable 'x'.

Reorder the terms:
22 + -4 + 21x + 4x + 4x2 = 4 + -4x + -4 + 4x

Combine like terms: 22 + -4 = 18
18 + 21x + 4x + 4x2 = 4 + -4x + -4 + 4x

Combine like terms: 21x + 4x = 25x
18 + 25x + 4x2 = 4 + -4x + -4 + 4x

Reorder the terms:
18 + 25x + 4x2 = 4 + -4 + -4x + 4x

Combine like terms: 4 + -4 = 0
18 + 25x + 4x2 = 0 + -4x + 4x
18 + 25x + 4x2 = -4x + 4x

Combine like terms: -4x + 4x = 0
18 + 25x + 4x2 = 0

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

Divide each side by '4'.
4.5 + 6.25x + x2 = 0

Move the constant term to the right:

Add '-4.5' to each side of the equation.
4.5 + 6.25x + -4.5 + x2 = 0 + -4.5

Reorder the terms:
4.5 + -4.5 + 6.25x + x2 = 0 + -4.5

Combine like terms: 4.5 + -4.5 = 0.0
0.0 + 6.25x + x2 = 0 + -4.5
6.25x + x2 = 0 + -4.5

Combine like terms: 0 + -4.5 = -4.5
6.25x + x2 = -4.5

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 = -4.5 + 9.765625

Reorder the terms:
9.765625 + 6.25x + x2 = -4.5 + 9.765625

Combine like terms: -4.5 + 9.765625 = 5.265625
9.765625 + 6.25x + x2 = 5.265625

Factor a perfect square on the left side:
(x + 3.125)(x + 3.125) = 5.265625

Calculate the square root of the right side: 2.294694969

Break this problem into two subproblems by setting 
(x + 3.125) equal to 2.294694969 and -2.294694969.

Subproblem 1

x + 3.125 = 2.294694969 Simplifying x + 3.125 = 2.294694969 Reorder the terms: 3.125 + x = 2.294694969 Solving 3.125 + x = 2.294694969 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.125' to each side of the equation. 3.125 + -3.125 + x = 2.294694969 + -3.125 Combine like terms: 3.125 + -3.125 = 0.000 0.000 + x = 2.294694969 + -3.125 x = 2.294694969 + -3.125 Combine like terms: 2.294694969 + -3.125 = -0.830305031 x = -0.830305031 Simplifying x = -0.830305031

Subproblem 2

x + 3.125 = -2.294694969 Simplifying x + 3.125 = -2.294694969 Reorder the terms: 3.125 + x = -2.294694969 Solving 3.125 + x = -2.294694969 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.125' to each side of the equation. 3.125 + -3.125 + x = -2.294694969 + -3.125 Combine like terms: 3.125 + -3.125 = 0.000 0.000 + x = -2.294694969 + -3.125 x = -2.294694969 + -3.125 Combine like terms: -2.294694969 + -3.125 = -5.419694969 x = -5.419694969 Simplifying x = -5.419694969

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.830305031, -5.419694969}

See similar equations:

| 5(x-2)=8#-3 | | 12x-41+5x+5y= | | Y=Ax-Fx-C | | z^6-z^3-2=0 | | (12x-8)+3(2x-4)= | | 10x+3=3(2x+1)-x+8 | | -x+3+9x=-2+3x+10 | | -11c=89 | | 5=-3(x+2)-4 | | 6x+3+x=2+2x+21 | | 7x(4+4x)= | | 5x-4=2x+29 | | 5y=9 | | 0=9-5y | | 5x=-6 | | 10x=x+100 | | 6x+5=-2#-9 | | 4x^2-36x=-80 | | 6x+4x=65-3x | | 2+16/2+6=4 | | 3p^2-7p-6=0 | | x^3+2x^2+x-2=0 | | 3x^2-8x*3=0 | | 14m+2-27=m+3 | | -7t=-70 | | x^2-x-38=0 | | 12q=-24 | | -b=80 | | (8x+3)-x=8x+16 | | 4p=-4 | | -(5y+4)-(-4y-5)=-6 | | -13g=-52 |

Equations solver categories