x^2-7x-19=-6+1

Simple and best practice solution for x^2-7x-19=-6+1 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 x^2-7x-19=-6+1 equation:


Simplifying
x2 + -7x + -19 = -6 + 1

Reorder the terms:
-19 + -7x + x2 = -6 + 1

Combine like terms: -6 + 1 = -5
-19 + -7x + x2 = -5

Solving
-19 + -7x + x2 = -5

Solving for variable 'x'.

Reorder the terms:
-19 + 5 + -7x + x2 = -5 + 5

Combine like terms: -19 + 5 = -14
-14 + -7x + x2 = -5 + 5

Combine like terms: -5 + 5 = 0
-14 + -7x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '14' to each side of the equation.
-14 + -7x + 14 + x2 = 0 + 14

Reorder the terms:
-14 + 14 + -7x + x2 = 0 + 14

Combine like terms: -14 + 14 = 0
0 + -7x + x2 = 0 + 14
-7x + x2 = 0 + 14

Combine like terms: 0 + 14 = 14
-7x + x2 = 14

The x term is -7x.  Take half its coefficient (-3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
-7x + 12.25 + x2 = 14 + 12.25

Reorder the terms:
12.25 + -7x + x2 = 14 + 12.25

Combine like terms: 14 + 12.25 = 26.25
12.25 + -7x + x2 = 26.25

Factor a perfect square on the left side:
(x + -3.5)(x + -3.5) = 26.25

Calculate the square root of the right side: 5.123475383

Break this problem into two subproblems by setting 
(x + -3.5) equal to 5.123475383 and -5.123475383.

Subproblem 1

x + -3.5 = 5.123475383 Simplifying x + -3.5 = 5.123475383 Reorder the terms: -3.5 + x = 5.123475383 Solving -3.5 + x = 5.123475383 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = 5.123475383 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = 5.123475383 + 3.5 x = 5.123475383 + 3.5 Combine like terms: 5.123475383 + 3.5 = 8.623475383 x = 8.623475383 Simplifying x = 8.623475383

Subproblem 2

x + -3.5 = -5.123475383 Simplifying x + -3.5 = -5.123475383 Reorder the terms: -3.5 + x = -5.123475383 Solving -3.5 + x = -5.123475383 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = -5.123475383 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = -5.123475383 + 3.5 x = -5.123475383 + 3.5 Combine like terms: -5.123475383 + 3.5 = -1.623475383 x = -1.623475383 Simplifying x = -1.623475383

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.623475383, -1.623475383}

See similar equations:

| 5-(4x+6)=3x+(7-4x) | | -8=-8+x | | 1/3+2/3m=1/3m-2/3 | | 2(2+3)= | | t=t^2-4t+3 | | M+3+5=21 | | 2x+7=x-8 | | -10g+7=-3+5g | | 2x-2=12x-11 | | (2a-6b+c-9d)7= | | 3x+5(2x-1)=8-3(4-5x) | | 10x-160=3x-6 | | 7.4x-3=6.4x | | x^2+10x=29 | | 24x+8=14+28 | | 7-7=16x+2x | | 12+4=x+3x | | 5x+3x-6x+x= | | 12+3(z-4)=2z+1 | | 5x+2=5(3)+2 | | 5(m+6)= | | -5(x-4)=-5x+20 | | d(d+10)=-25 | | 1/2m=5+3 | | 7x+2=2+7x | | 8x+x=8x+5 | | (M^6n)^-8/m^-39n^5 | | x+29=143 | | 4z+3z=z-4-7z | | 21k-7k^2=0 | | 100=x^2-7x-108 | | 47-7x=20x+17 |

Equations solver categories