6n^2-30n+42=

Simple and best practice solution for 6n^2-30n+42= 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 6n^2-30n+42= equation:


Simplifying
6n2 + -30n + 42 = 0

Reorder the terms:
42 + -30n + 6n2 = 0

Solving
42 + -30n + 6n2 = 0

Solving for variable 'n'.

Factor out the Greatest Common Factor (GCF), '6'.
6(7 + -5n + n2) = 0

Ignore the factor 6.

Subproblem 1

Set the factor '(7 + -5n + n2)' equal to zero and attempt to solve: Simplifying 7 + -5n + n2 = 0 Solving 7 + -5n + n2 = 0 Begin completing the square. Move the constant term to the right: Add '-7' to each side of the equation. 7 + -5n + -7 + n2 = 0 + -7 Reorder the terms: 7 + -7 + -5n + n2 = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -5n + n2 = 0 + -7 -5n + n2 = 0 + -7 Combine like terms: 0 + -7 = -7 -5n + n2 = -7 The n term is -5n. Take half its coefficient (-2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. -5n + 6.25 + n2 = -7 + 6.25 Reorder the terms: 6.25 + -5n + n2 = -7 + 6.25 Combine like terms: -7 + 6.25 = -0.75 6.25 + -5n + n2 = -0.75 Factor a perfect square on the left side: (n + -2.5)(n + -2.5) = -0.75 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

See similar equations:

| 2x+9/5=6 | | 45x^2-6x+20=0 | | -6t+(-6)=-95 | | C^3+c^2-c= | | 8t-12+4t=6 | | t-1.4=-21.5 | | 13a+20b= | | -15d^5+45d^3= | | 12y-16= | | 5-9*8-2= | | 23-9x(-7)= | | 3x+5x-14=28 | | 50=9x-4 | | 4=6x-8 | | y=2x^2-6x+1 | | 5x+6=-41 | | 4+5x=-3x | | (8-x)*(3x+9)=0 | | 5x-y=9x-4 | | 1/2x+2/6x | | 3n^2-16=-22n | | 21x^2=21-40x | | 3/7*5=8 | | 3a^2-2a-8=0 | | (6000000/360)*x=500000 | | 3x+y+8x=3+2x | | 2r^2-7r+3=0 | | 4x+7=10alg | | 5b^2-12b+4=0 | | 9x-5(7-2x)=7x+9 | | 6x+7=32 | | x^2=10.9 |

Equations solver categories