-x^2+2x+1=

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


Simplifying
-1x2 + 2x + 1 = 0

Reorder the terms:
1 + 2x + -1x2 = 0

Solving
1 + 2x + -1x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-1 + -2x + x2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -2x + 1 + x2 = 0 + 1

Reorder the terms:
-1 + 1 + -2x + x2 = 0 + 1

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

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

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = 1 + 1

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

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

Factor a perfect square on the left side:
(x + -1)(x + -1) = 2

Calculate the square root of the right side: 1.414213562

Break this problem into two subproblems by setting 
(x + -1) equal to 1.414213562 and -1.414213562.

Subproblem 1

x + -1 = 1.414213562 Simplifying x + -1 = 1.414213562 Reorder the terms: -1 + x = 1.414213562 Solving -1 + x = 1.414213562 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 1.414213562 + 1 Combine like terms: -1 + 1 = 0 0 + x = 1.414213562 + 1 x = 1.414213562 + 1 Combine like terms: 1.414213562 + 1 = 2.414213562 x = 2.414213562 Simplifying x = 2.414213562

Subproblem 2

x + -1 = -1.414213562 Simplifying x + -1 = -1.414213562 Reorder the terms: -1 + x = -1.414213562 Solving -1 + x = -1.414213562 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -1.414213562 + 1 Combine like terms: -1 + 1 = 0 0 + x = -1.414213562 + 1 x = -1.414213562 + 1 Combine like terms: -1.414213562 + 1 = -0.414213562 x = -0.414213562 Simplifying x = -0.414213562

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.414213562, -0.414213562}

See similar equations:

| (P+13q)(p-13q)= | | p(x)=35x-55 | | -4d+(-6d)= | | 2x+8xy-4y= | | -4d+(6d)= | | 1/4a-1o | | lnx+ln(12-x)=35 | | 4-2+3= | | (y+21+6)=5*(y+6) | | (12√14)/(2√7) | | (x+8)(x+8)=12 | | (x+6)=5*(x-21+6) | | 5c-2(c-6)=2+4c | | 5(x=3)/4=4x-4 | | -3+9+5x=-17 | | x=-log(1/10000) | | 3x-7x=-4 | | 3x-7x=1-4 | | r/5-8=r/10 | | [7-(5x+4)]-8x= | | 3(x+15)=4x-28 | | 7/z=3/8 | | 4-3=0.015625 | | x-5+x-11=100 | | 2x+0.4y=0.4 | | y-43=68 | | 88-3x=2x+3 | | (-18x^7v^6-13x^7v^3)/(2x^4v^5) | | (4x+2)(4x-2)= | | 16+6y=17 | | 7/9y=7 | | (4x+11)(4x+11)= |

Equations solver categories