x^2+2x-35=9

Simple and best practice solution for x^2+2x-35=9 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 x^2+2x-35=9 equation:


Simplifying
x2 + 2x + -35 = 9

Reorder the terms:
-35 + 2x + x2 = 9

Solving
-35 + 2x + x2 = 9

Solving for variable 'x'.

Reorder the terms:
-35 + -9 + 2x + x2 = 9 + -9

Combine like terms: -35 + -9 = -44
-44 + 2x + x2 = 9 + -9

Combine like terms: 9 + -9 = 0
-44 + 2x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '44' to each side of the equation.
-44 + 2x + 44 + x2 = 0 + 44

Reorder the terms:
-44 + 44 + 2x + x2 = 0 + 44

Combine like terms: -44 + 44 = 0
0 + 2x + x2 = 0 + 44
2x + x2 = 0 + 44

Combine like terms: 0 + 44 = 44
2x + x2 = 44

The x term is 2x.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2x + 1 + x2 = 44 + 1

Reorder the terms:
1 + 2x + x2 = 44 + 1

Combine like terms: 44 + 1 = 45
1 + 2x + x2 = 45

Factor a perfect square on the left side:
(x + 1)(x + 1) = 45

Calculate the square root of the right side: 6.708203933

Break this problem into two subproblems by setting 
(x + 1) equal to 6.708203933 and -6.708203933.

Subproblem 1

x + 1 = 6.708203933 Simplifying x + 1 = 6.708203933 Reorder the terms: 1 + x = 6.708203933 Solving 1 + x = 6.708203933 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 6.708203933 + -1 Combine like terms: 1 + -1 = 0 0 + x = 6.708203933 + -1 x = 6.708203933 + -1 Combine like terms: 6.708203933 + -1 = 5.708203933 x = 5.708203933 Simplifying x = 5.708203933

Subproblem 2

x + 1 = -6.708203933 Simplifying x + 1 = -6.708203933 Reorder the terms: 1 + x = -6.708203933 Solving 1 + x = -6.708203933 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -6.708203933 + -1 Combine like terms: 1 + -1 = 0 0 + x = -6.708203933 + -1 x = -6.708203933 + -1 Combine like terms: -6.708203933 + -1 = -7.708203933 x = -7.708203933 Simplifying x = -7.708203933

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.708203933, -7.708203933}

See similar equations:

| 1/5+1/7+1/12+5=x | | 45+578.2x=34x | | 6t^2-4t-3t+2= | | 7x+3=17+5x | | x^2+28x+43=0 | | x^2+10x+25=2 | | 2j^2+2j+3j+3= | | 11x-10=5x+14 | | (-5)-(+6)= | | 10x+5=9x+8 | | -130-10x=7x+20 | | 17x^2-29x=0 | | x^2+3x+x+3= | | 2x+1=4x+1 | | (+4)-(-1)= | | +4-(-1)= | | 9x-3=8x+7 | | 3x^2+7x=-4 | | -28y+(-3y)= | | 4a^2b^2+16ab+a= | | (-9)-(-6)= | | (-5)+(-4)= | | 35x^2+15x= | | (-5)+(+9)= | | 6x+7=7x+4 | | x+x^2y+x^3y^2= | | (0)+(-7)= | | 6x+13=-147-10x# | | (-2)+(+9)= | | t^2h+3t= | | 3f+2=5f-8 | | (+9)+(+3)= |

Equations solver categories