(4x^2-7)-(-5x-3)+(-2x^2+4x)=

Simple and best practice solution for (4x^2-7)-(-5x-3)+(-2x^2+4x)= 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^2-7)-(-5x-3)+(-2x^2+4x)= equation:


Simplifying
(4x2 + -7) + -1(-5x + -3) + (-2x2 + 4x) = 0

Reorder the terms:
(-7 + 4x2) + -1(-5x + -3) + (-2x2 + 4x) = 0

Remove parenthesis around (-7 + 4x2)
-7 + 4x2 + -1(-5x + -3) + (-2x2 + 4x) = 0

Reorder the terms:
-7 + 4x2 + -1(-3 + -5x) + (-2x2 + 4x) = 0
-7 + 4x2 + (-3 * -1 + -5x * -1) + (-2x2 + 4x) = 0
-7 + 4x2 + (3 + 5x) + (-2x2 + 4x) = 0

Reorder the terms:
-7 + 4x2 + 3 + 5x + (4x + -2x2) = 0

Remove parenthesis around (4x + -2x2)
-7 + 4x2 + 3 + 5x + 4x + -2x2 = 0

Reorder the terms:
-7 + 3 + 5x + 4x + 4x2 + -2x2 = 0

Combine like terms: -7 + 3 = -4
-4 + 5x + 4x + 4x2 + -2x2 = 0

Combine like terms: 5x + 4x = 9x
-4 + 9x + 4x2 + -2x2 = 0

Combine like terms: 4x2 + -2x2 = 2x2
-4 + 9x + 2x2 = 0

Solving
-4 + 9x + 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'.
-2 + 4.5x + x2 = 0

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + 4.5x + 2 + x2 = 0 + 2

Reorder the terms:
-2 + 2 + 4.5x + x2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + 4.5x + x2 = 0 + 2
4.5x + x2 = 0 + 2

Combine like terms: 0 + 2 = 2
4.5x + x2 = 2

The x term is 4.5x.  Take half its coefficient (2.25).
Square it (5.0625) and add it to both sides.

Add '5.0625' to each side of the equation.
4.5x + 5.0625 + x2 = 2 + 5.0625

Reorder the terms:
5.0625 + 4.5x + x2 = 2 + 5.0625

Combine like terms: 2 + 5.0625 = 7.0625
5.0625 + 4.5x + x2 = 7.0625

Factor a perfect square on the left side:
(x + 2.25)(x + 2.25) = 7.0625

Calculate the square root of the right side: 2.657536453

Break this problem into two subproblems by setting 
(x + 2.25) equal to 2.657536453 and -2.657536453.

Subproblem 1

x + 2.25 = 2.657536453 Simplifying x + 2.25 = 2.657536453 Reorder the terms: 2.25 + x = 2.657536453 Solving 2.25 + x = 2.657536453 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.25' to each side of the equation. 2.25 + -2.25 + x = 2.657536453 + -2.25 Combine like terms: 2.25 + -2.25 = 0.00 0.00 + x = 2.657536453 + -2.25 x = 2.657536453 + -2.25 Combine like terms: 2.657536453 + -2.25 = 0.407536453 x = 0.407536453 Simplifying x = 0.407536453

Subproblem 2

x + 2.25 = -2.657536453 Simplifying x + 2.25 = -2.657536453 Reorder the terms: 2.25 + x = -2.657536453 Solving 2.25 + x = -2.657536453 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.25' to each side of the equation. 2.25 + -2.25 + x = -2.657536453 + -2.25 Combine like terms: 2.25 + -2.25 = 0.00 0.00 + x = -2.657536453 + -2.25 x = -2.657536453 + -2.25 Combine like terms: -2.657536453 + -2.25 = -4.907536453 x = -4.907536453 Simplifying x = -4.907536453

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.407536453, -4.907536453}

See similar equations:

| 6-5x=-3x | | n-7=-7 | | 3x^2+4x+2= | | w(3w-8)=35 | | 4(x-3)=-3x+37 | | 4x^2-20=-x^2+21x | | -2d-1=12 | | a-18=-21 | | -15d-1=12 | | 3(x-4)-12=2(x-6)+5 | | Y=0.13x+3.75 | | 2p^2-13=2+p | | -15v=225 | | 2h+10=74 | | 3k^2-4=4k | | 6b=-12 | | y=-2(4)+1 | | 27.3-k=57.7 | | -3n^2-11n+12=-5n^2 | | 4(x-4)=0 | | 3m-35=(m+10)+15 | | X^2+25x+4=-4x^2+4x | | -210+-5x=-1470 | | 10+0.80m= | | (4-x)(x+5)(2x-3)=0 | | 5a^2-13a=6 | | 7x-6=2x+14 | | 10(5x-12)=100 | | 2(y-2)+16=5y-9 | | 18y-40=22y | | 2v^2-9v=-9 | | 8-2(t+2)=-3t+1 |

Equations solver categories