64s^2+80s-25=

Simple and best practice solution for 64s^2+80s-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 64s^2+80s-25= equation:


Simplifying
64s2 + 80s + -25 = 0

Reorder the terms:
-25 + 80s + 64s2 = 0

Solving
-25 + 80s + 64s2 = 0

Solving for variable 's'.

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

Divide each side by '64'.
-0.390625 + 1.25s + s2 = 0

Move the constant term to the right:

Add '0.390625' to each side of the equation.
-0.390625 + 1.25s + 0.390625 + s2 = 0 + 0.390625

Reorder the terms:
-0.390625 + 0.390625 + 1.25s + s2 = 0 + 0.390625

Combine like terms: -0.390625 + 0.390625 = 0.000000
0.000000 + 1.25s + s2 = 0 + 0.390625
1.25s + s2 = 0 + 0.390625

Combine like terms: 0 + 0.390625 = 0.390625
1.25s + s2 = 0.390625

The s term is 1.25s.  Take half its coefficient (0.625).
Square it (0.390625) and add it to both sides.

Add '0.390625' to each side of the equation.
1.25s + 0.390625 + s2 = 0.390625 + 0.390625

Reorder the terms:
0.390625 + 1.25s + s2 = 0.390625 + 0.390625

Combine like terms: 0.390625 + 0.390625 = 0.78125
0.390625 + 1.25s + s2 = 0.78125

Factor a perfect square on the left side:
(s + 0.625)(s + 0.625) = 0.78125

Calculate the square root of the right side: 0.883883476

Break this problem into two subproblems by setting 
(s + 0.625) equal to 0.883883476 and -0.883883476.

Subproblem 1

s + 0.625 = 0.883883476 Simplifying s + 0.625 = 0.883883476 Reorder the terms: 0.625 + s = 0.883883476 Solving 0.625 + s = 0.883883476 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-0.625' to each side of the equation. 0.625 + -0.625 + s = 0.883883476 + -0.625 Combine like terms: 0.625 + -0.625 = 0.000 0.000 + s = 0.883883476 + -0.625 s = 0.883883476 + -0.625 Combine like terms: 0.883883476 + -0.625 = 0.258883476 s = 0.258883476 Simplifying s = 0.258883476

Subproblem 2

s + 0.625 = -0.883883476 Simplifying s + 0.625 = -0.883883476 Reorder the terms: 0.625 + s = -0.883883476 Solving 0.625 + s = -0.883883476 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-0.625' to each side of the equation. 0.625 + -0.625 + s = -0.883883476 + -0.625 Combine like terms: 0.625 + -0.625 = 0.000 0.000 + s = -0.883883476 + -0.625 s = -0.883883476 + -0.625 Combine like terms: -0.883883476 + -0.625 = -1.508883476 s = -1.508883476 Simplifying s = -1.508883476

Solution

The solution to the problem is based on the solutions from the subproblems. s = {0.258883476, -1.508883476}

See similar equations:

| ax^6-x^6+6a-6= | | -1b+3=9 | | 11y^2+19y-60=0 | | -2x+14=2x-14 | | x+2x+3x=1.50 | | 12x^3+9x^2+3x= | | 6x+1=4x+49 | | 4v^2-17v=15 | | 4v^2-17v-15=0 | | 2+3,34= | | 1.6q-3.4-0.8q=-0.2q-2.8 | | w^2-25= | | 2+2+5=3x | | 35x^2+49x= | | 7x/8+11=5x/12 | | 5(n+2)=6(n+5) | | 8(x-9)=7(3+x) | | 9(x-7)=8(3+x) | | 5y+3=10y-2 | | a^2+b^2=-72 | | 6x-2=5x+3 | | 5x+30=14x-42 | | -8(x-4)-(2x-4)=11x | | -5(n-8)=-6n | | X-.5561x=20.2 | | 5x+30=4x-42 | | X-.5561x= | | 2(x+5)(x-5)+10+8(x+5)=0 | | -8(x+1)=-7z-8 | | 2(x+5)(x-5)+10+8x+40=0 | | 4a+2=3(-5) | | -8=3(-x+5)-x |

Equations solver categories