3x^2-3x-70=0

Simple and best practice solution for 3x^2-3x-70=0 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 3x^2-3x-70=0 equation:


Simplifying
3x2 + -3x + -70 = 0

Reorder the terms:
-70 + -3x + 3x2 = 0

Solving
-70 + -3x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
-23.33333333 + -1x + x2 = 0

Move the constant term to the right:

Add '23.33333333' to each side of the equation.
-23.33333333 + -1x + 23.33333333 + x2 = 0 + 23.33333333

Reorder the terms:
-23.33333333 + 23.33333333 + -1x + x2 = 0 + 23.33333333

Combine like terms: -23.33333333 + 23.33333333 = 0.00000000
0.00000000 + -1x + x2 = 0 + 23.33333333
-1x + x2 = 0 + 23.33333333

Combine like terms: 0 + 23.33333333 = 23.33333333
-1x + x2 = 23.33333333

The x term is -1x.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1x + 0.25 + x2 = 23.33333333 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 23.33333333 + 0.25

Combine like terms: 23.33333333 + 0.25 = 23.58333333
0.25 + -1x + x2 = 23.58333333

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 23.58333333

Calculate the square root of the right side: 4.856267428

Break this problem into two subproblems by setting 
(x + -0.5) equal to 4.856267428 and -4.856267428.

Subproblem 1

x + -0.5 = 4.856267428 Simplifying x + -0.5 = 4.856267428 Reorder the terms: -0.5 + x = 4.856267428 Solving -0.5 + x = 4.856267428 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = 4.856267428 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 4.856267428 + 0.5 x = 4.856267428 + 0.5 Combine like terms: 4.856267428 + 0.5 = 5.356267428 x = 5.356267428 Simplifying x = 5.356267428

Subproblem 2

x + -0.5 = -4.856267428 Simplifying x + -0.5 = -4.856267428 Reorder the terms: -0.5 + x = -4.856267428 Solving -0.5 + x = -4.856267428 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = -4.856267428 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -4.856267428 + 0.5 x = -4.856267428 + 0.5 Combine like terms: -4.856267428 + 0.5 = -4.356267428 x = -4.356267428 Simplifying x = -4.356267428

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.356267428, -4.356267428}

See similar equations:

| 4(x+2)+3= | | x+39=4x+18 | | log(8)(2x+3)=6 | | -25=7(x-7) | | 3(7x-3)= | | 4x^2-100=2 | | 8(x-4)=-64 | | 0.66n+0.33=-0.33 | | (x^3)-(3.2x^2)+2x+5=0 | | 16-7a=3a+2 | | 6x^2+60x=-54 | | (3r-5)(r-7)=0 | | Logybear=5 | | -2x+150=16 | | 7d+-6=-58 | | 2x^3+x+6x^2+3=0 | | 60+X-35=80 | | 2(c+5)-10= | | x^2+y^2+14x-4y-19=0 | | 6(4h+5)+4=28+6(5h-2) | | 8a+2a^4=0 | | 10cos(x)-9=0 | | 5a+3+8a-3= | | I/3x5 | | 12cos^2x+8cosx+1=0 | | 4(x+2)-8= | | 3x+6+5x-6= | | -2x^2+3x=9 | | 4+3w=-7 | | 14+(-8)=6t | | 55555555555555-99999999999+x=56496464646464646 | | .8(2-g)=32 |

Equations solver categories