0.25x^2+1.5x-6.5=0

Simple and best practice solution for 0.25x^2+1.5x-6.5=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 0.25x^2+1.5x-6.5=0 equation:


Simplifying
0.25x2 + 1.5x + -6.5 = 0

Reorder the terms:
-6.5 + 1.5x + 0.25x2 = 0

Solving
-6.5 + 1.5x + 0.25x2 = 0

Solving for variable 'x'.

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

Divide each side by '0.25'.
-26 + 6x + x2 = 0

Move the constant term to the right:

Add '26' to each side of the equation.
-26 + 6x + 26 + x2 = 0 + 26

Reorder the terms:
-26 + 26 + 6x + x2 = 0 + 26

Combine like terms: -26 + 26 = 0
0 + 6x + x2 = 0 + 26
6x + x2 = 0 + 26

Combine like terms: 0 + 26 = 26
6x + x2 = 26

The x term is 6x.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6x + 9 + x2 = 26 + 9

Reorder the terms:
9 + 6x + x2 = 26 + 9

Combine like terms: 26 + 9 = 35
9 + 6x + x2 = 35

Factor a perfect square on the left side:
(x + 3)(x + 3) = 35

Calculate the square root of the right side: 5.916079783

Break this problem into two subproblems by setting 
(x + 3) equal to 5.916079783 and -5.916079783.

Subproblem 1

x + 3 = 5.916079783 Simplifying x + 3 = 5.916079783 Reorder the terms: 3 + x = 5.916079783 Solving 3 + x = 5.916079783 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 5.916079783 + -3 Combine like terms: 3 + -3 = 0 0 + x = 5.916079783 + -3 x = 5.916079783 + -3 Combine like terms: 5.916079783 + -3 = 2.916079783 x = 2.916079783 Simplifying x = 2.916079783

Subproblem 2

x + 3 = -5.916079783 Simplifying x + 3 = -5.916079783 Reorder the terms: 3 + x = -5.916079783 Solving 3 + x = -5.916079783 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -5.916079783 + -3 Combine like terms: 3 + -3 = 0 0 + x = -5.916079783 + -3 x = -5.916079783 + -3 Combine like terms: -5.916079783 + -3 = -8.916079783 x = -8.916079783 Simplifying x = -8.916079783

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.916079783, -8.916079783}

See similar equations:

| 2(8-4n)+4=20-8n | | (8x+4)(-x^2+x-1)=0 | | -21*7= | | 2v^2+9v-14=(v+4)(v+4) | | 12m=10+46 | | x^2+6x=206.25 | | y=2x-3x-5x+10 | | 2v^2+9v-14=(v-4) | | 1.5b/1.8a=1.2 | | 2(m-5)+1=2(m+1)-9 | | 5x+2x+10=35 | | X(7x-4)+x(2x-3)=(9x+3)(x-1) | | 13-5x=8x+10 | | 2.1x^2+10.5x-6=0 | | 2(p-4)=3p+1 | | 3x+9x=x | | 2.3x^2+8x-2.45=0 | | 5log(10x+2)+9=9 | | 4x^2+57x+189=368 | | 4x^2+57x+189=0 | | x+2x=234 | | -0.2x^2+9.7x+11=0 | | -0.2x^2+9.7x+1=0 | | 7m+3=4-2m | | 28lnx=12 | | 6y-v+7= | | 2x+9-7-x=14+8-1x | | 8s-16=5+s | | -13+x=199 | | 48.73/12 | | 94.8/1000 | | P(u-1)-8(u-1)= |

Equations solver categories