0=x^2+90x+38

Simple and best practice solution for 0=x^2+90x+38 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=x^2+90x+38 equation:


Simplifying
0 = x2 + 90x + 38

Reorder the terms:
0 = 38 + 90x + x2

Solving
0 = 38 + 90x + x2

Solving for variable 'x'.

Combine like terms: 0 + -38 = -38
-38 + -90x + -1x2 = 38 + 90x + x2 + -38 + -90x + -1x2

Reorder the terms:
-38 + -90x + -1x2 = 38 + -38 + 90x + -90x + x2 + -1x2

Combine like terms: 38 + -38 = 0
-38 + -90x + -1x2 = 0 + 90x + -90x + x2 + -1x2
-38 + -90x + -1x2 = 90x + -90x + x2 + -1x2

Combine like terms: 90x + -90x = 0
-38 + -90x + -1x2 = 0 + x2 + -1x2
-38 + -90x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-38 + -90x + -1x2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(38 + 90x + x2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(38 + 90x + x2)' equal to zero and attempt to solve: Simplifying 38 + 90x + x2 = 0 Solving 38 + 90x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-38' to each side of the equation. 38 + 90x + -38 + x2 = 0 + -38 Reorder the terms: 38 + -38 + 90x + x2 = 0 + -38 Combine like terms: 38 + -38 = 0 0 + 90x + x2 = 0 + -38 90x + x2 = 0 + -38 Combine like terms: 0 + -38 = -38 90x + x2 = -38 The x term is 90x. Take half its coefficient (45). Square it (2025) and add it to both sides. Add '2025' to each side of the equation. 90x + 2025 + x2 = -38 + 2025 Reorder the terms: 2025 + 90x + x2 = -38 + 2025 Combine like terms: -38 + 2025 = 1987 2025 + 90x + x2 = 1987 Factor a perfect square on the left side: (x + 45)(x + 45) = 1987 Calculate the square root of the right side: 44.575778176 Break this problem into two subproblems by setting (x + 45) equal to 44.575778176 and -44.575778176.

Subproblem 1

x + 45 = 44.575778176 Simplifying x + 45 = 44.575778176 Reorder the terms: 45 + x = 44.575778176 Solving 45 + x = 44.575778176 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-45' to each side of the equation. 45 + -45 + x = 44.575778176 + -45 Combine like terms: 45 + -45 = 0 0 + x = 44.575778176 + -45 x = 44.575778176 + -45 Combine like terms: 44.575778176 + -45 = -0.424221824 x = -0.424221824 Simplifying x = -0.424221824

Subproblem 2

x + 45 = -44.575778176 Simplifying x + 45 = -44.575778176 Reorder the terms: 45 + x = -44.575778176 Solving 45 + x = -44.575778176 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-45' to each side of the equation. 45 + -45 + x = -44.575778176 + -45 Combine like terms: 45 + -45 = 0 0 + x = -44.575778176 + -45 x = -44.575778176 + -45 Combine like terms: -44.575778176 + -45 = -89.575778176 x = -89.575778176 Simplifying x = -89.575778176

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.424221824, -89.575778176}

Solution

x = {-0.424221824, -89.575778176}

See similar equations:

| 9-19a-2+2a+7a=4a+7+14-14a | | 775/62 | | 2X+1.5=8 | | logx1/32=5 | | zover-5+6=1 | | -8h=.36 | | 3(5+2x)=45+8x | | Z^2=25/49 | | 9-19a-2+2a+7a=4a | | 35a-28=15-8a | | 7x+7=4x+13 | | 4/5d-3=13 | | -4x-x+2y-y= | | b^3+2b=12 | | 7.75/6.2 | | 3x^6-11x^5-20x^4=0 | | 7.5p-3+4=-29 | | 48=16+-8z | | w^2-16w+64-a^2=0 | | 6.4a=0.8 | | 2b+16=c | | 20-3x=2(x+1) | | -3(-9x+4)=-3(6x+9) | | -21=35-x | | 20=0.05x+12 | | -120=-4x | | -0.166x-(x-3)=-39 | | (-4x+96)-(10x+12)=-14 | | x^5-8=0 | | 24=20log(.2/x) | | 3.5*1=q | | 21x+2=4x-66 |

Equations solver categories