s^2+5s=-7

Simple and best practice solution for s^2+5s=-7 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 s^2+5s=-7 equation:


Simplifying
s2 + 5s = -7

Reorder the terms:
5s + s2 = -7

Solving
5s + s2 = -7

Solving for variable 's'.

Reorder the terms:
7 + 5s + s2 = -7 + 7

Combine like terms: -7 + 7 = 0
7 + 5s + s2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-7' to each side of the equation.
7 + 5s + -7 + s2 = 0 + -7

Reorder the terms:
7 + -7 + 5s + s2 = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 5s + s2 = 0 + -7
5s + s2 = 0 + -7

Combine like terms: 0 + -7 = -7
5s + s2 = -7

The s term is 5s.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5s + 6.25 + s2 = -7 + 6.25

Reorder the terms:
6.25 + 5s + s2 = -7 + 6.25

Combine like terms: -7 + 6.25 = -0.75
6.25 + 5s + s2 = -0.75

Factor a perfect square on the left side:
(s + 2.5)(s + 2.5) = -0.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| f(8)=-7 | | 4y=15-3x | | (-3-p)(3+p)= | | 4x-1=14-31 | | h=15y+19 | | 4x-1=11x-47 | | 3x^3+2xy-4y=89 | | 4x^2=88x | | 11x-22y=-18 | | y=(3x/5) | | 2w-3+2w+11=4w+8 | | Sin^2x-3/4=0 | | 2ab=24 | | 9x-5=20x-32+8x | | B=2a+c | | 9x^2+13x-2=0 | | (5m-1)(6m+-5)=0 | | 5x+y+0.1z=50 | | (5m+1)(6m-5)=0 | | 3(2l+8)=84 | | 3y-8=34 | | 5x+3=15x-7+8x | | FX=(X+5)2-10 | | 4y+6+20y-11+7y-7=360 | | g(x)=x^4-9x^2-4x+12 | | 1/4x-4=3/8 | | 4.99/x=5 | | -4E-9=9 | | 8x-11=2x+6+5x | | 9v=-891 | | -1.72-3.4n=-2n+1.5+2.8 | | 8x-11=20x-32+8x |

Equations solver categories