10x^2-9x-3=0

Simple and best practice solution for 10x^2-9x-3=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 10x^2-9x-3=0 equation:


Simplifying
10x2 + -9x + -3 = 0

Reorder the terms:
-3 + -9x + 10x2 = 0

Solving
-3 + -9x + 10x2 = 0

Solving for variable 'x'.

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

Divide each side by '10'.
-0.3 + -0.9x + x2 = 0

Move the constant term to the right:

Add '0.3' to each side of the equation.
-0.3 + -0.9x + 0.3 + x2 = 0 + 0.3

Reorder the terms:
-0.3 + 0.3 + -0.9x + x2 = 0 + 0.3

Combine like terms: -0.3 + 0.3 = 0.0
0.0 + -0.9x + x2 = 0 + 0.3
-0.9x + x2 = 0 + 0.3

Combine like terms: 0 + 0.3 = 0.3
-0.9x + x2 = 0.3

The x term is -0.9x.  Take half its coefficient (-0.45).
Square it (0.2025) and add it to both sides.

Add '0.2025' to each side of the equation.
-0.9x + 0.2025 + x2 = 0.3 + 0.2025

Reorder the terms:
0.2025 + -0.9x + x2 = 0.3 + 0.2025

Combine like terms: 0.3 + 0.2025 = 0.5025
0.2025 + -0.9x + x2 = 0.5025

Factor a perfect square on the left side:
(x + -0.45)(x + -0.45) = 0.5025

Calculate the square root of the right side: 0.708872344

Break this problem into two subproblems by setting 
(x + -0.45) equal to 0.708872344 and -0.708872344.

Subproblem 1

x + -0.45 = 0.708872344 Simplifying x + -0.45 = 0.708872344 Reorder the terms: -0.45 + x = 0.708872344 Solving -0.45 + x = 0.708872344 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.45' to each side of the equation. -0.45 + 0.45 + x = 0.708872344 + 0.45 Combine like terms: -0.45 + 0.45 = 0.00 0.00 + x = 0.708872344 + 0.45 x = 0.708872344 + 0.45 Combine like terms: 0.708872344 + 0.45 = 1.158872344 x = 1.158872344 Simplifying x = 1.158872344

Subproblem 2

x + -0.45 = -0.708872344 Simplifying x + -0.45 = -0.708872344 Reorder the terms: -0.45 + x = -0.708872344 Solving -0.45 + x = -0.708872344 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.45' to each side of the equation. -0.45 + 0.45 + x = -0.708872344 + 0.45 Combine like terms: -0.45 + 0.45 = 0.00 0.00 + x = -0.708872344 + 0.45 x = -0.708872344 + 0.45 Combine like terms: -0.708872344 + 0.45 = -0.258872344 x = -0.258872344 Simplifying x = -0.258872344

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.158872344, -0.258872344}

See similar equations:

| -4h+5j-4j+7h= | | x/25-4/5=-3/5 | | 5x+452=68 | | 10-4m=7m-23 | | 4y/3-5=7 | | X^2+y^2+8x-6y+30=0 | | n-5=34 | | 1x+6=3(x+3) | | 9+c=29 | | 20.5/20 | | 1x+6=3x+9 | | -4/3(y-6)-16= | | (-10,-6);m=-5/8 | | 3/5x-/8/15x=3 | | 4(h-3)=h | | 2.3x-2.2=1.2x | | 5-x^2=y | | 3(g+4)-9=-19 | | 4(x-4)=8/11 | | 2(x+4)=x-10 | | 5x^2-14xy+7y^2+1=0 | | 5x-17=x-17 | | 5x^2-14xy+7x^2+1=0 | | =12*8+4-4 | | 12(4+c)= | | 6a-(5+5a)=(3+9)-8 | | 3x^3+3x-40=0 | | 123456789%*1244689%= | | (21b-5)-5(4b+3)=-6 | | lny=25(ln(x-3)-ln(x+2)) | | 2(x-4)=3(2x-4) | | 6(6+5g)= |

Equations solver categories