7n^2=30n-8

Simple and best practice solution for 7n^2=30n-8 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 7n^2=30n-8 equation:


Simplifying
7n2 = 30n + -8

Reorder the terms:
7n2 = -8 + 30n

Solving
7n2 = -8 + 30n

Solving for variable 'n'.

Reorder the terms:
8 + -30n + 7n2 = -8 + 30n + 8 + -30n

Reorder the terms:
8 + -30n + 7n2 = -8 + 8 + 30n + -30n

Combine like terms: -8 + 8 = 0
8 + -30n + 7n2 = 0 + 30n + -30n
8 + -30n + 7n2 = 30n + -30n

Combine like terms: 30n + -30n = 0
8 + -30n + 7n2 = 0

Factor a trinomial.
(2 + -7n)(4 + -1n) = 0

Subproblem 1

Set the factor '(2 + -7n)' equal to zero and attempt to solve: Simplifying 2 + -7n = 0 Solving 2 + -7n = 0 Move all terms containing n to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -7n = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -7n = 0 + -2 -7n = 0 + -2 Combine like terms: 0 + -2 = -2 -7n = -2 Divide each side by '-7'. n = 0.2857142857 Simplifying n = 0.2857142857

Subproblem 2

Set the factor '(4 + -1n)' equal to zero and attempt to solve: Simplifying 4 + -1n = 0 Solving 4 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1n = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1n = 0 + -4 -1n = 0 + -4 Combine like terms: 0 + -4 = -4 -1n = -4 Divide each side by '-1'. n = 4 Simplifying n = 4

Solution

n = {0.2857142857, 4}

See similar equations:

| 3y+10=4 | | -3y-5=28 | | 180=10b | | w^2-7w+12=0 | | 125t^10-2t^7=0 | | 11y=99 | | 48*x=4(x+7) | | 6x^2+x-2= | | 12j=-16(j-8) | | -4+y=-8 | | r^2+28=11r | | 14x+9=7x+37 | | 5n+7=19n | | x^3-6x^2+9x+2=0 | | 13x=8x+10 | | -1y-7=-5 | | 4x-3y=-9 | | 6(x-3)=-2x+22 | | -1y-1=-4 | | 3x^2-14x-24= | | -11y=22 | | 3=c-13 | | 10y+10=-20 | | 2(x+7)=x+18 | | 10x-6=5x+14 | | 12+y=8 | | 2y+2=-8 | | 6x^3+48= | | 4p-8t=8p | | -2y-4=-14 | | z^2-49x^2= | | 12e-19=7-e |

Equations solver categories