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

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


Simplifying
2x2 + -6 = -7x + 1

Reorder the terms:
-6 + 2x2 = -7x + 1

Reorder the terms:
-6 + 2x2 = 1 + -7x

Solving
-6 + 2x2 = 1 + -7x

Solving for variable 'x'.

Reorder the terms:
-6 + -1 + 7x + 2x2 = 1 + -7x + -1 + 7x

Combine like terms: -6 + -1 = -7
-7 + 7x + 2x2 = 1 + -7x + -1 + 7x

Reorder the terms:
-7 + 7x + 2x2 = 1 + -1 + -7x + 7x

Combine like terms: 1 + -1 = 0
-7 + 7x + 2x2 = 0 + -7x + 7x
-7 + 7x + 2x2 = -7x + 7x

Combine like terms: -7x + 7x = 0
-7 + 7x + 2x2 = 0

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

Divide each side by '2'.
-3.5 + 3.5x + x2 = 0

Move the constant term to the right:

Add '3.5' to each side of the equation.
-3.5 + 3.5x + 3.5 + x2 = 0 + 3.5

Reorder the terms:
-3.5 + 3.5 + 3.5x + x2 = 0 + 3.5

Combine like terms: -3.5 + 3.5 = 0.0
0.0 + 3.5x + x2 = 0 + 3.5
3.5x + x2 = 0 + 3.5

Combine like terms: 0 + 3.5 = 3.5
3.5x + x2 = 3.5

The x term is 3.5x.  Take half its coefficient (1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
3.5x + 3.0625 + x2 = 3.5 + 3.0625

Reorder the terms:
3.0625 + 3.5x + x2 = 3.5 + 3.0625

Combine like terms: 3.5 + 3.0625 = 6.5625
3.0625 + 3.5x + x2 = 6.5625

Factor a perfect square on the left side:
(x + 1.75)(x + 1.75) = 6.5625

Calculate the square root of the right side: 2.561737691

Break this problem into two subproblems by setting 
(x + 1.75) equal to 2.561737691 and -2.561737691.

Subproblem 1

x + 1.75 = 2.561737691 Simplifying x + 1.75 = 2.561737691 Reorder the terms: 1.75 + x = 2.561737691 Solving 1.75 + x = 2.561737691 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.75' to each side of the equation. 1.75 + -1.75 + x = 2.561737691 + -1.75 Combine like terms: 1.75 + -1.75 = 0.00 0.00 + x = 2.561737691 + -1.75 x = 2.561737691 + -1.75 Combine like terms: 2.561737691 + -1.75 = 0.811737691 x = 0.811737691 Simplifying x = 0.811737691

Subproblem 2

x + 1.75 = -2.561737691 Simplifying x + 1.75 = -2.561737691 Reorder the terms: 1.75 + x = -2.561737691 Solving 1.75 + x = -2.561737691 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.75' to each side of the equation. 1.75 + -1.75 + x = -2.561737691 + -1.75 Combine like terms: 1.75 + -1.75 = 0.00 0.00 + x = -2.561737691 + -1.75 x = -2.561737691 + -1.75 Combine like terms: -2.561737691 + -1.75 = -4.311737691 x = -4.311737691 Simplifying x = -4.311737691

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.811737691, -4.311737691}

See similar equations:

| -x-(7.3+5.7)=9.5 | | (2x-4)(x)=96 | | Xsquared+x=1.33 | | 10=20-p | | 4a=-11 | | 9s+12=5s | | Xsquared-x=1.33 | | x-(7.3+5.7)=9.5 | | 17+21x=13+23x | | (t+5)(t-6)=0 | | 5x^2-10=14x-7 | | -2n+16+4n=36 | | 3*x+10=120 | | 16=-32+t | | 2(x)=9+13 | | 6y+4(y+3)=7 | | ln(3x-2)+4=0 | | 9(k+8)+3k=-6 | | -2(u+7)+24=2(6-u) | | 63-(5x+11)=5(x+6)+x | | 9z+2(2z+2)= | | 3/4x+2=-12 | | 4x(2)-8x-5=0 | | 4x(2)-8x-5=0 | | 3x+15+4(x-1)=60 | | sqrt(3x+1)+sqrt(x-1)=2 | | 3x+15+4x-4=60 | | y=16.5+16.5*x | | 6y+5(3y+1)=10 | | 10t/2t-t/7=1 | | (8x)+18=(9x)-6 | | 4r^2+10r-14=0 |

Equations solver categories