2x^2-3x=10

Simple and best practice solution for 2x^2-3x=10 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^2-3x=10 equation:


Simplifying
2x2 + -3x = 10

Reorder the terms:
-3x + 2x2 = 10

Solving
-3x + 2x2 = 10

Solving for variable 'x'.

Reorder the terms:
-10 + -3x + 2x2 = 10 + -10

Combine like terms: 10 + -10 = 0
-10 + -3x + 2x2 = 0

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

Divide each side by '2'.
-5 + -1.5x + x2 = 0

Move the constant term to the right:

Add '5' to each side of the equation.
-5 + -1.5x + 5 + x2 = 0 + 5

Reorder the terms:
-5 + 5 + -1.5x + x2 = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -1.5x + x2 = 0 + 5
-1.5x + x2 = 0 + 5

Combine like terms: 0 + 5 = 5
-1.5x + x2 = 5

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 = 5 + 0.5625

Reorder the terms:
0.5625 + -1.5x + x2 = 5 + 0.5625

Combine like terms: 5 + 0.5625 = 5.5625
0.5625 + -1.5x + x2 = 5.5625

Factor a perfect square on the left side:
(x + -0.75)(x + -0.75) = 5.5625

Calculate the square root of the right side: 2.358495283

Break this problem into two subproblems by setting 
(x + -0.75) equal to 2.358495283 and -2.358495283.

Subproblem 1

x + -0.75 = 2.358495283 Simplifying x + -0.75 = 2.358495283 Reorder the terms: -0.75 + x = 2.358495283 Solving -0.75 + x = 2.358495283 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 = 2.358495283 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = 2.358495283 + 0.75 x = 2.358495283 + 0.75 Combine like terms: 2.358495283 + 0.75 = 3.108495283 x = 3.108495283 Simplifying x = 3.108495283

Subproblem 2

x + -0.75 = -2.358495283 Simplifying x + -0.75 = -2.358495283 Reorder the terms: -0.75 + x = -2.358495283 Solving -0.75 + x = -2.358495283 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 = -2.358495283 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.00 + x = -2.358495283 + 0.75 x = -2.358495283 + 0.75 Combine like terms: -2.358495283 + 0.75 = -1.608495283 x = -1.608495283 Simplifying x = -1.608495283

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.108495283, -1.608495283}

See similar equations:

| 8+2(4+3x)=8+8+6x | | 62-c= | | 5+f=25 | | x+0.06x=109866.56 | | 4.5q-1.5-4.9=-1.4q-3.3 | | 170=x^2+3x | | 20s^3+65s^2-60s=0 | | 25m-250=12 | | x^2-79=0 | | 4.78x+12=6.34 | | m+-15=25 | | 16xt=48 | | x^2+y^2+4x-4y-17=0 | | 13-r=12 | | 12x+3=4(2x+1)-x+5 | | -x+3+13x=-6+3x+45 | | 4x+2+x=1+3x+3 | | 2.56+d=8.94d | | 11k=-55 | | 8t^2-8t=0 | | 1.5+z=6.28 | | 7.05=2(3.14)r | | 13.022+a=3.338 | | 7c^2+48c-7= | | 7.2-k=4.84 | | 3x=-5y-11 | | 7.2-4.84= | | .3x+.6x=9 | | 32+n=5.7 | | 5y-7+y+37=8y+30-6y | | -5+10x=5x-10 | | 9(t-4)+3t=6(2t+4)-8 |

Equations solver categories