(-4x+3)+(-2x^2+8)=

Simple and best practice solution for (-4x+3)+(-2x^2+8)= 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+3)+(-2x^2+8)= equation:


Simplifying
(-4x + 3) + (-2x2 + 8) = 0

Reorder the terms:
(3 + -4x) + (-2x2 + 8) = 0

Remove parenthesis around (3 + -4x)
3 + -4x + (-2x2 + 8) = 0

Reorder the terms:
3 + -4x + (8 + -2x2) = 0

Remove parenthesis around (8 + -2x2)
3 + -4x + 8 + -2x2 = 0

Reorder the terms:
3 + 8 + -4x + -2x2 = 0

Combine like terms: 3 + 8 = 11
11 + -4x + -2x2 = 0

Solving
11 + -4x + -2x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-2 the coefficient of the squared term: 

Divide each side by '-2'.
-5.5 + 2x + x2 = 0

Move the constant term to the right:

Add '5.5' to each side of the equation.
-5.5 + 2x + 5.5 + x2 = 0 + 5.5

Reorder the terms:
-5.5 + 5.5 + 2x + x2 = 0 + 5.5

Combine like terms: -5.5 + 5.5 = 0.0
0.0 + 2x + x2 = 0 + 5.5
2x + x2 = 0 + 5.5

Combine like terms: 0 + 5.5 = 5.5
2x + x2 = 5.5

The x term is 2x.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2x + 1 + x2 = 5.5 + 1

Reorder the terms:
1 + 2x + x2 = 5.5 + 1

Combine like terms: 5.5 + 1 = 6.5
1 + 2x + x2 = 6.5

Factor a perfect square on the left side:
(x + 1)(x + 1) = 6.5

Calculate the square root of the right side: 2.549509757

Break this problem into two subproblems by setting 
(x + 1) equal to 2.549509757 and -2.549509757.

Subproblem 1

x + 1 = 2.549509757 Simplifying x + 1 = 2.549509757 Reorder the terms: 1 + x = 2.549509757 Solving 1 + x = 2.549509757 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 2.549509757 + -1 Combine like terms: 1 + -1 = 0 0 + x = 2.549509757 + -1 x = 2.549509757 + -1 Combine like terms: 2.549509757 + -1 = 1.549509757 x = 1.549509757 Simplifying x = 1.549509757

Subproblem 2

x + 1 = -2.549509757 Simplifying x + 1 = -2.549509757 Reorder the terms: 1 + x = -2.549509757 Solving 1 + x = -2.549509757 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -2.549509757 + -1 Combine like terms: 1 + -1 = 0 0 + x = -2.549509757 + -1 x = -2.549509757 + -1 Combine like terms: -2.549509757 + -1 = -3.549509757 x = -3.549509757 Simplifying x = -3.549509757

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.549509757, -3.549509757}

See similar equations:

| ln(2x-1)+ln(x-4)=ln(x-2) | | 2(-13)-3y=4 | | 112n^2-252= | | g^2+17g+72= | | 5a+10=115 | | 2(3)+6y=32 | | x^2+40x+400=12 | | 10x^2-53x-11= | | (-x^2+10)+(3x+6)= | | 7y^2+11y-6= | | x(x-3)=x^2+6x-9 | | 4x+40=12-32 | | 0-2y=-4 | | X^2-10=159 | | a^2-6a-7= | | (-4x)10= | | -4-4x=2x+21 | | 3+7y=33 | | 10x+6(4-x)=2x-12 | | 5x^2+42x+16= | | 10(-4x)= | | 3(-4)+2y=2 | | 6u=-30 | | w^2+5w-6= | | 3(x-1)=2(x+6) | | -3x+-3x=-90 | | 146-3x=33x+22 | | g(x)=-4 | | -3x+-3=9 | | 36x^2-48a-20=0 | | .5+5=.75x+1 | | 2s*3y*4x= |

Equations solver categories