16s^2+40s-25=0

Simple and best practice solution for 16s^2+40s-25=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 16s^2+40s-25=0 equation:


Simplifying
16s2 + 40s + -25 = 0

Reorder the terms:
-25 + 40s + 16s2 = 0

Solving
-25 + 40s + 16s2 = 0

Solving for variable 's'.

Begin completing the square.  Divide all terms by
16 the coefficient of the squared term: 

Divide each side by '16'.
-1.5625 + 2.5s + s2 = 0

Move the constant term to the right:

Add '1.5625' to each side of the equation.
-1.5625 + 2.5s + 1.5625 + s2 = 0 + 1.5625

Reorder the terms:
-1.5625 + 1.5625 + 2.5s + s2 = 0 + 1.5625

Combine like terms: -1.5625 + 1.5625 = 0.0000
0.0000 + 2.5s + s2 = 0 + 1.5625
2.5s + s2 = 0 + 1.5625

Combine like terms: 0 + 1.5625 = 1.5625
2.5s + s2 = 1.5625

The s term is 2.5s.  Take half its coefficient (1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
2.5s + 1.5625 + s2 = 1.5625 + 1.5625

Reorder the terms:
1.5625 + 2.5s + s2 = 1.5625 + 1.5625

Combine like terms: 1.5625 + 1.5625 = 3.125
1.5625 + 2.5s + s2 = 3.125

Factor a perfect square on the left side:
(s + 1.25)(s + 1.25) = 3.125

Calculate the square root of the right side: 1.767766953

Break this problem into two subproblems by setting 
(s + 1.25) equal to 1.767766953 and -1.767766953.

Subproblem 1

s + 1.25 = 1.767766953 Simplifying s + 1.25 = 1.767766953 Reorder the terms: 1.25 + s = 1.767766953 Solving 1.25 + s = 1.767766953 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + s = 1.767766953 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + s = 1.767766953 + -1.25 s = 1.767766953 + -1.25 Combine like terms: 1.767766953 + -1.25 = 0.517766953 s = 0.517766953 Simplifying s = 0.517766953

Subproblem 2

s + 1.25 = -1.767766953 Simplifying s + 1.25 = -1.767766953 Reorder the terms: 1.25 + s = -1.767766953 Solving 1.25 + s = -1.767766953 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + s = -1.767766953 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + s = -1.767766953 + -1.25 s = -1.767766953 + -1.25 Combine like terms: -1.767766953 + -1.25 = -3.017766953 s = -3.017766953 Simplifying s = -3.017766953

Solution

The solution to the problem is based on the solutions from the subproblems. s = {0.517766953, -3.017766953}

See similar equations:

| 14y^4-7y^2=0 | | (x-2)+(2x+2)=4x+x | | 5(x+2)-9(x-2)=0 | | x^2+25x-36=0 | | 230+h=1265 | | 0=t(5t+3) | | =3a+4b | | y=(4x+3)2 | | 25x+3=4x+18 | | y=(x+1)(3x+4) | | 14=3(3x-1) | | 36a^2-25= | | y*8=1000 | | 12y^2-5yz-2z^2= | | 2s+5t=12 | | 4+2lnx=3 | | 12(2x-6)=3(8x+5) | | y^2-21y+108=0 | | -(6X+35)= | | 5.3x-5.25=7.95-3.5x | | 1.2m=0.5 | | 2x+12=-2x+24 | | y=0.75x+3.43 | | -3o+w=2o | | F(x)=4-6x | | y^2-y+8=0 | | 4.8(x-3)=-0.2x+10.6 | | 7(t-5)7t=7(2t+4)-11 | | (x+1)(x+18)=10x | | =5c^2-50c+105 | | x^2+128x+3250=0 | | 6s=-18 |

Equations solver categories