8n^2-3n-10=

Simple and best practice solution for 8n^2-3n-10= 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 8n^2-3n-10= equation:


Simplifying
8n2 + -3n + -10 = 0

Reorder the terms:
-10 + -3n + 8n2 = 0

Solving
-10 + -3n + 8n2 = 0

Solving for variable 'n'.

Begin completing the square.  Divide all terms by
8 the coefficient of the squared term: 

Divide each side by '8'.
-1.25 + -0.375n + n2 = 0

Move the constant term to the right:

Add '1.25' to each side of the equation.
-1.25 + -0.375n + 1.25 + n2 = 0 + 1.25

Reorder the terms:
-1.25 + 1.25 + -0.375n + n2 = 0 + 1.25

Combine like terms: -1.25 + 1.25 = 0.00
0.00 + -0.375n + n2 = 0 + 1.25
-0.375n + n2 = 0 + 1.25

Combine like terms: 0 + 1.25 = 1.25
-0.375n + n2 = 1.25

The n term is -0.375n.  Take half its coefficient (-0.1875).
Square it (0.03515625) and add it to both sides.

Add '0.03515625' to each side of the equation.
-0.375n + 0.03515625 + n2 = 1.25 + 0.03515625

Reorder the terms:
0.03515625 + -0.375n + n2 = 1.25 + 0.03515625

Combine like terms: 1.25 + 0.03515625 = 1.28515625
0.03515625 + -0.375n + n2 = 1.28515625

Factor a perfect square on the left side:
(n + -0.1875)(n + -0.1875) = 1.28515625

Calculate the square root of the right side: 1.133647322

Break this problem into two subproblems by setting 
(n + -0.1875) equal to 1.133647322 and -1.133647322.

Subproblem 1

n + -0.1875 = 1.133647322 Simplifying n + -0.1875 = 1.133647322 Reorder the terms: -0.1875 + n = 1.133647322 Solving -0.1875 + n = 1.133647322 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.1875' to each side of the equation. -0.1875 + 0.1875 + n = 1.133647322 + 0.1875 Combine like terms: -0.1875 + 0.1875 = 0.0000 0.0000 + n = 1.133647322 + 0.1875 n = 1.133647322 + 0.1875 Combine like terms: 1.133647322 + 0.1875 = 1.321147322 n = 1.321147322 Simplifying n = 1.321147322

Subproblem 2

n + -0.1875 = -1.133647322 Simplifying n + -0.1875 = -1.133647322 Reorder the terms: -0.1875 + n = -1.133647322 Solving -0.1875 + n = -1.133647322 Solving for variable 'n'. Move all terms containing n to the left, all other terms to the right. Add '0.1875' to each side of the equation. -0.1875 + 0.1875 + n = -1.133647322 + 0.1875 Combine like terms: -0.1875 + 0.1875 = 0.0000 0.0000 + n = -1.133647322 + 0.1875 n = -1.133647322 + 0.1875 Combine like terms: -1.133647322 + 0.1875 = -0.946147322 n = -0.946147322 Simplifying n = -0.946147322

Solution

The solution to the problem is based on the solutions from the subproblems. n = {1.321147322, -0.946147322}

See similar equations:

| 4x+2=9x-24 | | 3x+2y+6=9 | | 7z-7=-42 | | 8n^2+9n-5=5n^2+7n | | 108+8x=111+7 | | 5-7-4n+8n= | | -7(v+4)+2v+7=7v+9 | | 48+4y=-2y | | -4(2n+4)=16 | | f(x)=25+.15x | | Y-13-2x=4 | | 4x-x^2=3x^2-x^3 | | 4(2a+4b)+5(2a+3b)= | | 9k^2-53-6=0 | | F(x)=9+12x | | 2x-3(x+1)=-1 | | 15x+24=16x-72 | | h^2+h-72=0 | | 27x+35=15x+108 | | -2x+10x-125=83 | | 16-9t=47 | | 11x+4=2x-9 | | F(-3)=9+12(-3) | | a+w=250 | | 5b+7=2b+5 | | 13+7x=9x+5 | | 6x+3x-100=80 | | 12x-101-5x-19=6 | | 22x+4=23x+1 | | -2(x-9)+3x=9 | | -2x-9=12 | | 2(y+2)=5(y-1) |

Equations solver categories