x^2+17x=-49

Simple and best practice solution for x^2+17x=-49 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+17x=-49 equation:


Simplifying
x2 + 17x = -49

Reorder the terms:
17x + x2 = -49

Solving
17x + x2 = -49

Solving for variable 'x'.

Reorder the terms:
49 + 17x + x2 = -49 + 49

Combine like terms: -49 + 49 = 0
49 + 17x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-49' to each side of the equation.
49 + 17x + -49 + x2 = 0 + -49

Reorder the terms:
49 + -49 + 17x + x2 = 0 + -49

Combine like terms: 49 + -49 = 0
0 + 17x + x2 = 0 + -49
17x + x2 = 0 + -49

Combine like terms: 0 + -49 = -49
17x + x2 = -49

The x term is 17x.  Take half its coefficient (8.5).
Square it (72.25) and add it to both sides.

Add '72.25' to each side of the equation.
17x + 72.25 + x2 = -49 + 72.25

Reorder the terms:
72.25 + 17x + x2 = -49 + 72.25

Combine like terms: -49 + 72.25 = 23.25
72.25 + 17x + x2 = 23.25

Factor a perfect square on the left side:
(x + 8.5)(x + 8.5) = 23.25

Calculate the square root of the right side: 4.82182538

Break this problem into two subproblems by setting 
(x + 8.5) equal to 4.82182538 and -4.82182538.

Subproblem 1

x + 8.5 = 4.82182538 Simplifying x + 8.5 = 4.82182538 Reorder the terms: 8.5 + x = 4.82182538 Solving 8.5 + x = 4.82182538 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.5' to each side of the equation. 8.5 + -8.5 + x = 4.82182538 + -8.5 Combine like terms: 8.5 + -8.5 = 0.0 0.0 + x = 4.82182538 + -8.5 x = 4.82182538 + -8.5 Combine like terms: 4.82182538 + -8.5 = -3.67817462 x = -3.67817462 Simplifying x = -3.67817462

Subproblem 2

x + 8.5 = -4.82182538 Simplifying x + 8.5 = -4.82182538 Reorder the terms: 8.5 + x = -4.82182538 Solving 8.5 + x = -4.82182538 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.5' to each side of the equation. 8.5 + -8.5 + x = -4.82182538 + -8.5 Combine like terms: 8.5 + -8.5 = 0.0 0.0 + x = -4.82182538 + -8.5 x = -4.82182538 + -8.5 Combine like terms: -4.82182538 + -8.5 = -13.32182538 x = -13.32182538 Simplifying x = -13.32182538

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-3.67817462, -13.32182538}

See similar equations:

| 2(4x+3)-3x=3(2x-1)+6 | | 2m+13m=120 | | 7r+8-3r=2(r+12)-6 | | x+1.5=1.2 | | 3x-9y=9 | | X(2x-9)=0 | | (s+7)(2-12)=0 | | 2c+6=22 | | -6.88x+9.21=2.64x+6.23 | | -10.5x=42.0 | | 18x+92=281-11x | | 4x+y=-2-y | | Y-12=5 | | 4x^2+8x-252=0 | | 5X^2-14X+24=0 | | 18=n-4 | | 7n-4=31 | | x^2-12x+36=7 | | 27w=540 | | 5x^2-14x+14=0 | | -4-7x+2x^2=0 | | lnx+ln(2x+1)=0 | | x-19.8=47.4 | | 4x^2+12x+9=13 | | 3t+5=23 | | 3.54+0.81z=-3.4+8.63z | | -5(3b+2)+(16b-8)=0 | | W+8=2 | | 2x-8y=-24 | | ln(7x+2)=2 | | 4.1+2.9y=-8.88+1.7y | | 2[x-(1-3x)]=3(x+1) |

Equations solver categories