x^2+3x=-25

Simple and best practice solution for x^2+3x=-25 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+3x=-25 equation:


Simplifying
x2 + 3x = -25

Reorder the terms:
3x + x2 = -25

Solving
3x + x2 = -25

Solving for variable 'x'.

Reorder the terms:
25 + 3x + x2 = -25 + 25

Combine like terms: -25 + 25 = 0
25 + 3x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-25' to each side of the equation.
25 + 3x + -25 + x2 = 0 + -25

Reorder the terms:
25 + -25 + 3x + x2 = 0 + -25

Combine like terms: 25 + -25 = 0
0 + 3x + x2 = 0 + -25
3x + x2 = 0 + -25

Combine like terms: 0 + -25 = -25
3x + x2 = -25

The x term is 3x.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3x + 2.25 + x2 = -25 + 2.25

Reorder the terms:
2.25 + 3x + x2 = -25 + 2.25

Combine like terms: -25 + 2.25 = -22.75
2.25 + 3x + x2 = -22.75

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = -22.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 5(x-2)-14x=x-5 | | 50(x-600)=.66 | | 6=27x-6y | | n+-3=10 | | (5x-6(500-x))=8x | | de+9df+3d+8=-3e-9 | | 78+5x=50+7x | | -p-1=p-21 | | 13m=143 | | 5.6+1.9n=0.66 | | 0=6x^5-10x^3 | | 20n-28=10n+2 | | 10c=80 | | 5(a+3)-a=-(4a-6)+1 | | x^2+10x-8=0 | | 5m=25 | | 5+x=16 | | 44x-17-9x=11+35x-28 | | 8k+28= | | 9x+8= | | 2x+16=3X-10 | | (7x^4y^2+4x^2Y^3)-(5x^4y^2-2x^2y^3)= | | 30=12m | | 7y-3=3y+3 | | x+(-4)=7 | | n(2)=10n+96 | | x-(-4)=7 | | 8=x+9 | | -5x+8y=7 | | 3(n+2)=3-3(n-7) | | (7x+1)-(-4x+6)= | | x-4=-7 |

Equations solver categories