-2x^2+5=3x-3

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


Simplifying
-2x2 + 5 = 3x + -3

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

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

Solving
5 + -2x2 = -3 + 3x

Solving for variable 'x'.

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

Combine like terms: 5 + 3 = 8
8 + -3x + -2x2 = -3 + 3x + 3 + -3x

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

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

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

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

Divide each side by '-2'.
-4 + 1.5x + x2 = 0

Move the constant term to the right:

Add '4' to each side of the equation.
-4 + 1.5x + 4 + x2 = 0 + 4

Reorder the terms:
-4 + 4 + 1.5x + x2 = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 1.5x + x2 = 0 + 4
1.5x + x2 = 0 + 4

Combine like terms: 0 + 4 = 4
1.5x + x2 = 4

The x term is 1.5x.  Take half its coefficient (0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
1.5x + 0.5625 + x2 = 4 + 0.5625

Reorder the terms:
0.5625 + 1.5x + x2 = 4 + 0.5625

Combine like terms: 4 + 0.5625 = 4.5625
0.5625 + 1.5x + x2 = 4.5625

Factor a perfect square on the left side:
(x + 0.75)(x + 0.75) = 4.5625

Calculate the square root of the right side: 2.136000936

Break this problem into two subproblems by setting 
(x + 0.75) equal to 2.136000936 and -2.136000936.

Subproblem 1

x + 0.75 = 2.136000936 Simplifying x + 0.75 = 2.136000936 Reorder the terms: 0.75 + x = 2.136000936 Solving 0.75 + x = 2.136000936 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = 2.136000936 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = 2.136000936 + -0.75 x = 2.136000936 + -0.75 Combine like terms: 2.136000936 + -0.75 = 1.386000936 x = 1.386000936 Simplifying x = 1.386000936

Subproblem 2

x + 0.75 = -2.136000936 Simplifying x + 0.75 = -2.136000936 Reorder the terms: 0.75 + x = -2.136000936 Solving 0.75 + x = -2.136000936 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = -2.136000936 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = -2.136000936 + -0.75 x = -2.136000936 + -0.75 Combine like terms: -2.136000936 + -0.75 = -2.886000936 x = -2.886000936 Simplifying x = -2.886000936

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.386000936, -2.886000936}

See similar equations:

| 51=x+4x+(x+3) | | -4(4)+4y=16 | | 6+z*10=-2 | | 2x/7x=3 | | x(15x+4)=32 | | 6x-6=4x+10 | | 2x/8x=3 | | f(x)=x^3+6x^2+3x-10 | | -6(4)+y=24 | | -12(2n+11)=3(5n-5) | | 6x-1=27-x | | 5+log^4(-4x)=7 | | 3x+2(x-7)=(9x-1)-(x-8) | | -6x+(-6x+24)=24 | | 10x+8=158 | | 300=x+(x+20) | | n+3*8=-4 | | .5(4x-10)=15 | | (h-6)=2(5-2h) | | 2/7(x)= | | x+7=x-31 | | 29x-17y=-7 | | 7.3=y-6 | | 29x-17y=-7forx | | 2=(1+0.01)12n | | -1*2x-7=-11 | | 7x=5t+3 | | n/48=6 | | 2+{-5}= | | -4(-6v-1)=-40+2v | | -7/9w=35 | | (5g-2g)+(2g^2+6g)= |

Equations solver categories