5n^2+5n-210=0

Simple and best practice solution for 5n^2+5n-210=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 5n^2+5n-210=0 equation:


Simplifying
5n2 + 5n + -210 = 0

Reorder the terms:
-210 + 5n + 5n2 = 0

Solving
-210 + 5n + 5n2 = 0

Solving for variable 'n'.

Factor out the Greatest Common Factor (GCF), '5'.
5(-42 + n + n2) = 0

Factor a trinomial.
5((-7 + -1n)(6 + -1n)) = 0

Ignore the factor 5.

Subproblem 1

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

Subproblem 2

Set the factor '(6 + -1n)' equal to zero and attempt to solve: Simplifying 6 + -1n = 0 Solving 6 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1n = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1n = 0 + -6 -1n = 0 + -6 Combine like terms: 0 + -6 = -6 -1n = -6 Divide each side by '-1'. n = 6 Simplifying n = 6

Solution

n = {-7, 6}

See similar equations:

| 2x^3*(x^3)^4/2x^0 | | 15-2x=4(3x-5) | | 2.5y-3.6y=-4 | | 25p^2-40p=0 | | 6m-n=5 | | 3x^4=-1 | | x-0.6=1.8 | | 6+-3x=5x+x+20 | | ln(y+1)-ln(y)=ln(x^3)-2ln(x-1) | | 8x2/1 | | 5x^6-17=3 | | -91=7k | | 7/20=x/400 | | -x-(-y+7x)-7y= | | 12x-15+10=-7x-5x-6 | | X^2-15x=14 | | 6-2X=10X | | s+12=97 | | -5w-6(2z-5w)+z= | | 0.39/0.25 | | 2x^4-14x^2+12x=0 | | 5n^3+6n^2=0 | | t+63=83 | | 3(-y-2z)-6(-7z-6y)= | | y+-20=-34 | | 27+9=90 | | v-46=8 | | 8=j-54 | | 2x+2+3x+1+x=180 | | 170+0.25x=350 | | 16^2v=1/64 | | 5(2x*2-1)-(10x*2-1)=-(x+2) |

Equations solver categories