10x^2-29x-90=0

Simple and best practice solution for 10x^2-29x-90=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^2-29x-90=0 equation:


Simplifying
10x2 + -29x + -90 = 0

Reorder the terms:
-90 + -29x + 10x2 = 0

Solving
-90 + -29x + 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'.
-9 + -2.9x + x2 = 0

Move the constant term to the right:

Add '9' to each side of the equation.
-9 + -2.9x + 9 + x2 = 0 + 9

Reorder the terms:
-9 + 9 + -2.9x + x2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -2.9x + x2 = 0 + 9
-2.9x + x2 = 0 + 9

Combine like terms: 0 + 9 = 9
-2.9x + x2 = 9

The x term is -2.9x.  Take half its coefficient (-1.45).
Square it (2.1025) and add it to both sides.

Add '2.1025' to each side of the equation.
-2.9x + 2.1025 + x2 = 9 + 2.1025

Reorder the terms:
2.1025 + -2.9x + x2 = 9 + 2.1025

Combine like terms: 9 + 2.1025 = 11.1025
2.1025 + -2.9x + x2 = 11.1025

Factor a perfect square on the left side:
(x + -1.45)(x + -1.45) = 11.1025

Calculate the square root of the right side: 3.332041416

Break this problem into two subproblems by setting 
(x + -1.45) equal to 3.332041416 and -3.332041416.

Subproblem 1

x + -1.45 = 3.332041416 Simplifying x + -1.45 = 3.332041416 Reorder the terms: -1.45 + x = 3.332041416 Solving -1.45 + x = 3.332041416 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.45' to each side of the equation. -1.45 + 1.45 + x = 3.332041416 + 1.45 Combine like terms: -1.45 + 1.45 = 0.00 0.00 + x = 3.332041416 + 1.45 x = 3.332041416 + 1.45 Combine like terms: 3.332041416 + 1.45 = 4.782041416 x = 4.782041416 Simplifying x = 4.782041416

Subproblem 2

x + -1.45 = -3.332041416 Simplifying x + -1.45 = -3.332041416 Reorder the terms: -1.45 + x = -3.332041416 Solving -1.45 + x = -3.332041416 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.45' to each side of the equation. -1.45 + 1.45 + x = -3.332041416 + 1.45 Combine like terms: -1.45 + 1.45 = 0.00 0.00 + x = -3.332041416 + 1.45 x = -3.332041416 + 1.45 Combine like terms: -3.332041416 + 1.45 = -1.882041416 x = -1.882041416 Simplifying x = -1.882041416

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.782041416, -1.882041416}

See similar equations:

| -4z-(-122)=62 | | 3*12+2y=18 | | -7(v+4)+4v+6=6v+6 | | 19-2(2x+3)=2(x+3)+x | | (7w^3-42w^2)-(4w+24)=0 | | (4x^2y-5xy^2+4xy-2)+(-2X^2Y-4XY^2+2XY+8)= | | x^2-32x^2+256=0 | | 4f-(-56)=56 | | 8p+15-3p=30 | | 2(2t-4)=16-2t | | 1.2x+7.4=10.4 | | 28=-14u+16 | | 2(t-4)=16-2t | | -3/5v-7/2=-8/3 | | 1+X^12=1.3 | | x/9=90 | | 5a-16=a-15 | | -13*7= | | 6x+8=2x+5 | | 2-5/6x-8 | | -2/3-2/5v=1/2 | | (3+1/x)/(4-1/x) | | 2+4i= | | -10a-2=4 | | y=(3x+5)(48x^5)-(3)(8x^6) | | 25n^3-5n^2-15n+3=0 | | -2/3-2/3v=1/2 | | 2/9x4/7 | | .33x-6=9 | | 3x+12=4x+1 | | 14=-2/9y | | 26x-13-14x=3(4x-5)+2 |

Equations solver categories