0=3x^2-23x-98

Simple and best practice solution for 0=3x^2-23x-98 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 0=3x^2-23x-98 equation:


Simplifying
0 = 3x2 + -23x + -98

Reorder the terms:
0 = -98 + -23x + 3x2

Solving
0 = -98 + -23x + 3x2

Solving for variable 'x'.

Combine like terms: 0 + 98 = 98
98 + 23x + -3x2 = -98 + -23x + 3x2 + 98 + 23x + -3x2

Reorder the terms:
98 + 23x + -3x2 = -98 + 98 + -23x + 23x + 3x2 + -3x2

Combine like terms: -98 + 98 = 0
98 + 23x + -3x2 = 0 + -23x + 23x + 3x2 + -3x2
98 + 23x + -3x2 = -23x + 23x + 3x2 + -3x2

Combine like terms: -23x + 23x = 0
98 + 23x + -3x2 = 0 + 3x2 + -3x2
98 + 23x + -3x2 = 3x2 + -3x2

Combine like terms: 3x2 + -3x2 = 0
98 + 23x + -3x2 = 0

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

Divide each side by '-3'.
-32.66666667 + -7.666666667x + x2 = 0

Move the constant term to the right:

Add '32.66666667' to each side of the equation.
-32.66666667 + -7.666666667x + 32.66666667 + x2 = 0 + 32.66666667

Reorder the terms:
-32.66666667 + 32.66666667 + -7.666666667x + x2 = 0 + 32.66666667

Combine like terms: -32.66666667 + 32.66666667 = 0.00000000
0.00000000 + -7.666666667x + x2 = 0 + 32.66666667
-7.666666667x + x2 = 0 + 32.66666667

Combine like terms: 0 + 32.66666667 = 32.66666667
-7.666666667x + x2 = 32.66666667

The x term is -7.666666667x.  Take half its coefficient (-3.833333334).
Square it (14.69444445) and add it to both sides.

Add '14.69444445' to each side of the equation.
-7.666666667x + 14.69444445 + x2 = 32.66666667 + 14.69444445

Reorder the terms:
14.69444445 + -7.666666667x + x2 = 32.66666667 + 14.69444445

Combine like terms: 32.66666667 + 14.69444445 = 47.36111112
14.69444445 + -7.666666667x + x2 = 47.36111112

Factor a perfect square on the left side:
(x + -3.833333334)(x + -3.833333334) = 47.36111112

Calculate the square root of the right side: 6.881940941

Break this problem into two subproblems by setting 
(x + -3.833333334) equal to 6.881940941 and -6.881940941.

Subproblem 1

x + -3.833333334 = 6.881940941 Simplifying x + -3.833333334 = 6.881940941 Reorder the terms: -3.833333334 + x = 6.881940941 Solving -3.833333334 + x = 6.881940941 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.833333334' to each side of the equation. -3.833333334 + 3.833333334 + x = 6.881940941 + 3.833333334 Combine like terms: -3.833333334 + 3.833333334 = 0.000000000 0.000000000 + x = 6.881940941 + 3.833333334 x = 6.881940941 + 3.833333334 Combine like terms: 6.881940941 + 3.833333334 = 10.715274275 x = 10.715274275 Simplifying x = 10.715274275

Subproblem 2

x + -3.833333334 = -6.881940941 Simplifying x + -3.833333334 = -6.881940941 Reorder the terms: -3.833333334 + x = -6.881940941 Solving -3.833333334 + x = -6.881940941 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.833333334' to each side of the equation. -3.833333334 + 3.833333334 + x = -6.881940941 + 3.833333334 Combine like terms: -3.833333334 + 3.833333334 = 0.000000000 0.000000000 + x = -6.881940941 + 3.833333334 x = -6.881940941 + 3.833333334 Combine like terms: -6.881940941 + 3.833333334 = -3.048607607 x = -3.048607607 Simplifying x = -3.048607607

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.715274275, -3.048607607}

See similar equations:

| 3x-3x=42 | | 6.1c+1.07=9 | | -2r/3-1/3(2+5r)=-14/3-4r/3 | | 3p/-1=5(p-1)-2(7-2p) | | 6a^2b-33ab-63b=0 | | -7x-60-9x=20 | | 10-8x+-2x=4x | | 2x^4+5x^3-x^2+5x-3=0 | | 8-6p-7p=11 | | 18-4=-2 | | 0=-5x-3x | | 2m+7/8m=69/56 | | L=2w+3 | | 10+8.1x=-0.9x-(x+2) | | 0.5r-(-4-2r)=6.5 | | 12+33=-5(3x-9) | | m+(-5)=-23 | | 2(n-8)+9= | | 30x+4=2x+9 | | -5-r+1=2r | | 7a+2=7a-10 | | 8x-7+7x=90 | | 11x+34+15x+18=5y-3 | | -23x+88+8x=-2 | | (2.2x+2)=(1-2.8x) | | -(4+3x)=-28+5x | | 2x+10x-(5x+8)= | | 7x+8x-7=90 | | X=3ab | | 3x-2/4=2x/5 | | 4c-5+14c=64 | | (27x-16x+6x)-(9x+2x+9)= |

Equations solver categories