4n^2+28n+40=280

Simple and best practice solution for 4n^2+28n+40=280 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 4n^2+28n+40=280 equation:


Simplifying
4n2 + 28n + 40 = 280

Reorder the terms:
40 + 28n + 4n2 = 280

Solving
40 + 28n + 4n2 = 280

Solving for variable 'n'.

Reorder the terms:
40 + -280 + 28n + 4n2 = 280 + -280

Combine like terms: 40 + -280 = -240
-240 + 28n + 4n2 = 280 + -280

Combine like terms: 280 + -280 = 0
-240 + 28n + 4n2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-60 + 7n + n2) = 0

Factor a trinomial.
4((-12 + -1n)(5 + -1n)) = 0

Ignore the factor 4.

Subproblem 1

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

Subproblem 2

Set the factor '(5 + -1n)' equal to zero and attempt to solve: Simplifying 5 + -1n = 0 Solving 5 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1n = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1n = 0 + -5 -1n = 0 + -5 Combine like terms: 0 + -5 = -5 -1n = -5 Divide each side by '-1'. n = 5 Simplifying n = 5

Solution

n = {-12, 5}

See similar equations:

| -4x^2-4x+15= | | 3m-4n=-14 | | 5r^2-55r+120=0 | | x^2+-12x=-36 | | 3x^2-4x-5= | | .5x^2=0.2x+1 | | 12y^2+17y-5= | | 4n^2+28n+40=0 | | 3(4x-5)+4(2x+6)= | | 4x^2-31x+1= | | 4x+5y=-3 | | 3x^2-19x+20= | | 7x^2+15x+2= | | 13x^2=18x+27 | | 3x^2+2x-7=2x+5 | | 8x^21+17x+2=0 | | 2x+130=6x-290 | | x^3+3x^2+3X-127=0 | | 254x*561=x | | 2m+15=3 | | 3x^2-32x=0 | | 6x^3+10x^2-24x=0 | | 1.2q+q^2=.64 | | x=-30 | | m+3m+1=7 | | 2916*4= | | 816+616+754+730= | | 0=-2x^2+14x-12 | | .5(y-3)=12 | | -2x^2=14x-12 | | .3(y-3)=12 | | -19-(-4)+(-3)-11= |

Equations solver categories