(5n+9)(n-8)=0

Simple and best practice solution for (5n+9)(n-8)=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+9)(n-8)=0 equation:


Simplifying
(5n + 9)(n + -8) = 0

Reorder the terms:
(9 + 5n)(n + -8) = 0

Reorder the terms:
(9 + 5n)(-8 + n) = 0

Multiply (9 + 5n) * (-8 + n)
(9(-8 + n) + 5n * (-8 + n)) = 0
((-8 * 9 + n * 9) + 5n * (-8 + n)) = 0
((-72 + 9n) + 5n * (-8 + n)) = 0
(-72 + 9n + (-8 * 5n + n * 5n)) = 0
(-72 + 9n + (-40n + 5n2)) = 0

Combine like terms: 9n + -40n = -31n
(-72 + -31n + 5n2) = 0

Solving
-72 + -31n + 5n2 = 0

Solving for variable 'n'.

Factor a trinomial.
(-9 + -5n)(8 + -1n) = 0

Subproblem 1

Set the factor '(-9 + -5n)' equal to zero and attempt to solve: Simplifying -9 + -5n = 0 Solving -9 + -5n = 0 Move all terms containing n to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -5n = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -5n = 0 + 9 -5n = 0 + 9 Combine like terms: 0 + 9 = 9 -5n = 9 Divide each side by '-5'. n = -1.8 Simplifying n = -1.8

Subproblem 2

Set the factor '(8 + -1n)' equal to zero and attempt to solve: Simplifying 8 + -1n = 0 Solving 8 + -1n = 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 + -1n = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1n = 0 + -8 -1n = 0 + -8 Combine like terms: 0 + -8 = -8 -1n = -8 Divide each side by '-1'. n = 8 Simplifying n = 8

Solution

n = {-1.8, 8}

See similar equations:

| A-10=6-3a | | -10-7y=-1-6y | | 15x-360=990 | | 16y=4x+8 | | (k+4)(k-9)=0 | | 2b-9=c | | y=150x-0 | | (p-4)(p+2)=0 | | 40-44= | | 6x+2+82=180 | | Y=12.5+5x | | 3x+2=3x+12 | | f(x)=9x^4-45x^3+37x^2+x+2 | | 47/500= | | -4x+y=-83 | | 7x(6x+5)= | | (r+7)(r+8)=0 | | x^2=-20x+19 | | n^2+2n=1200 | | 2(-5x)= | | -7=-1/6(x) | | -82+-78= | | 3(2-x)-5(3x+2)=-13+4 | | 1-(m-6)=3m+14 | | tan(0.5)*15.5= | | 3z/10-3=1 | | -(1/2)y=-4 | | x^2+kx+k^2-7=0 | | tan0.5/15.5 | | y=3*0-5 | | 3(log(2x+2))=x | | 16=8e^3x-1 |

Equations solver categories