x^2+11x+40=0

Simple and best practice solution for x^2+11x+40=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 x^2+11x+40=0 equation:


Simplifying
x2 + 11x + 40 = 0

Reorder the terms:
40 + 11x + x2 = 0

Solving
40 + 11x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-40' to each side of the equation.
40 + 11x + -40 + x2 = 0 + -40

Reorder the terms:
40 + -40 + 11x + x2 = 0 + -40

Combine like terms: 40 + -40 = 0
0 + 11x + x2 = 0 + -40
11x + x2 = 0 + -40

Combine like terms: 0 + -40 = -40
11x + x2 = -40

The x term is 11x.  Take half its coefficient (5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
11x + 30.25 + x2 = -40 + 30.25

Reorder the terms:
30.25 + 11x + x2 = -40 + 30.25

Combine like terms: -40 + 30.25 = -9.75
30.25 + 11x + x2 = -9.75

Factor a perfect square on the left side:
(x + 5.5)(x + 5.5) = -9.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| -9*3= | | 3x-9=5(1.5+x) | | -2.4(-0.6)-0.6y=9.3 | | 27*32+12/4 | | x+.05x=37800 | | -2.4(-2.4)-0.6y=9.3 | | 2+12/7 | | (4/5)^0 | | 16x^2=32 | | t(x)=x^3-3x^2+4x+8 | | us+un=r | | 161.80=350 | | ln(ln(3t))=0 | | 180=4x+x | | log(log(3t))=0 | | 8/7(n-69) | | -10x+11=7x+5 | | 5(x+6)=8x+2-3x+28 | | 3(x-7)=5(x-1)-4 | | 2x/9-6=6 | | 5n+6+15=3 | | 3(1.5t-6.2)+0.5t=2(t-0.3) | | .05x+200=.1x+75 | | .1x+75=400 | | r+6=10 | | -5.7x=6 | | -5.1(2x+6)-1.2(3x-5)= | | 5(u-7)-7u=-29 | | 3(x+1)=7(x-1)-6 | | -5-2m=3-8m-2 | | 2x+17-x=7+5x-6 | | 2+7p=4-3p |

Equations solver categories