s^2-5s-84=0

Simple and best practice solution for s^2-5s-84=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 s^2-5s-84=0 equation:


Simplifying
s2 + -5s + -84 = 0

Reorder the terms:
-84 + -5s + s2 = 0

Solving
-84 + -5s + s2 = 0

Solving for variable 's'.

Factor a trinomial.
(-7 + -1s)(12 + -1s) = 0

Subproblem 1

Set the factor '(-7 + -1s)' equal to zero and attempt to solve: Simplifying -7 + -1s = 0 Solving -7 + -1s = 0 Move all terms containing s to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -1s = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1s = 0 + 7 -1s = 0 + 7 Combine like terms: 0 + 7 = 7 -1s = 7 Divide each side by '-1'. s = -7 Simplifying s = -7

Subproblem 2

Set the factor '(12 + -1s)' equal to zero and attempt to solve: Simplifying 12 + -1s = 0 Solving 12 + -1s = 0 Move all terms containing s to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + -1s = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -1s = 0 + -12 -1s = 0 + -12 Combine like terms: 0 + -12 = -12 -1s = -12 Divide each side by '-1'. s = 12 Simplifying s = 12

Solution

s = {-7, 12}

See similar equations:

| 0.08x+0.13(1-x)=0.0918 | | 3y+(90-3y)=90 | | 5x-33=-2x-44 | | 11x+11=22y | | 90-3x+3x=90 | | 3x^2+2x=-8x+15 | | =4x-5 | | 4(2/5) | | Y=-16t(16)+486 | | -n-9/7=10 | | 5(3n-4)=(7n+1)+6 | | 7x+11=95 | | (x)=4x-5 | | 5*7+6=2*7+27 | | 3x^2+24x+y^2-6y-3=0 | | 90=3x+y | | 5y+4(y-6)=4(y+2)-5 | | 5x-7=-3x+2 | | 2c^2+16c+24=0 | | 3(y-8)/4=-2y | | 7x-4=y | | 1.4=x/1.4 | | 9y^2-3=24 | | y=-4/5(1.25)-4 | | -7a-5=-2a-15 | | cos^8x+sin^8x=1 | | (90-3x)+3x=90 | | 2x+9=12-2 | | 7xy-3+7= | | 2x^4+8x^3+16x^2=0 | | 5(5-7x)(6-x)=0 | | -x=-64 |

Equations solver categories