75n^2-80n-320=0

Simple and best practice solution for 75n^2-80n-320=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 75n^2-80n-320=0 equation:


Simplifying
75n2 + -80n + -320 = 0

Reorder the terms:
-320 + -80n + 75n2 = 0

Solving
-320 + -80n + 75n2 = 0

Solving for variable 'n'.

Factor out the Greatest Common Factor (GCF), '5'.
5(-64 + -16n + 15n2) = 0

Factor a trinomial.
5((-8 + -5n)(8 + -3n)) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(-8 + -5n)' equal to zero and attempt to solve: Simplifying -8 + -5n = 0 Solving -8 + -5n = 0 Move all terms containing n to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + -5n = 0 + 8 Combine like terms: -8 + 8 = 0 0 + -5n = 0 + 8 -5n = 0 + 8 Combine like terms: 0 + 8 = 8 -5n = 8 Divide each side by '-5'. n = -1.6 Simplifying n = -1.6

Subproblem 2

Set the factor '(8 + -3n)' equal to zero and attempt to solve: Simplifying 8 + -3n = 0 Solving 8 + -3n = 0 Move all terms containing n to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -3n = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -3n = 0 + -8 -3n = 0 + -8 Combine like terms: 0 + -8 = -8 -3n = -8 Divide each side by '-3'. n = 2.666666667 Simplifying n = 2.666666667

Solution

n = {-1.6, 2.666666667}

See similar equations:

| 210n^2-198n+24=0 | | (2x^(3/2))^4=128 | | 55-15=5(x-2) | | 204x49/68x1/9 | | 3v^2+v=0 | | 6-6x1/3 | | -(8y+1)-(-7y-5)=2 | | (2x^(3/2))^4=0 | | (2x^(3/2))^4 | | 18-4x=34 | | 21r^2+34r-35=0 | | (-8x^5y)(x^9y^7)= | | 35x^2-23x-6=0 | | z^4-8z^2-11=0 | | (4x+5)(x^2+1)= | | 900/108 | | e=0.22s+150 | | 16(x-3)=33 | | 3x-3y=30 | | 12x-9=6x+3 | | 27=2.5x+3 | | 10x^2=50 | | (9x-4)(3x+6)= | | -11=8/7r+29 | | (4x^2-5x^3)-(9x^2-8x^3)= | | 2+m/m=1/3 | | 7x=2(15+x) | | 8(b+5)=8(b-3) | | 4x^2+y^2-32x-6y+64=0 | | 6(3+6x)-4=122 | | logy=1.8 | | 7x^2+23x-48=0 |

Equations solver categories