x^2+3x=-17

Simple and best practice solution for x^2+3x=-17 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+3x=-17 equation:


Simplifying
x2 + 3x = -17

Reorder the terms:
3x + x2 = -17

Solving
3x + x2 = -17

Solving for variable 'x'.

Reorder the terms:
17 + 3x + x2 = -17 + 17

Combine like terms: -17 + 17 = 0
17 + 3x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-17' to each side of the equation.
17 + 3x + -17 + x2 = 0 + -17

Reorder the terms:
17 + -17 + 3x + x2 = 0 + -17

Combine like terms: 17 + -17 = 0
0 + 3x + x2 = 0 + -17
3x + x2 = 0 + -17

Combine like terms: 0 + -17 = -17
3x + x2 = -17

The x term is 3x.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3x + 2.25 + x2 = -17 + 2.25

Reorder the terms:
2.25 + 3x + x2 = -17 + 2.25

Combine like terms: -17 + 2.25 = -14.75
2.25 + 3x + x2 = -14.75

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = -14.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 148+1w=166-2w | | 3x^2-2x=5+y | | x^2-7.2x=-12.6 | | 0.4(20n-7.8)=14.2 | | -8x^2+2x+1=0 | | 4/5x-7/10x=2 | | x/6=(x/7)-3 | | 12500-200h=6500+1000h | | 88=346+3x/6 | | p+9=-4 | | 3b-8=7 | | us+uq=t | | x/6=(x-7)-3 | | 10-2b=6 | | 0.4x-.25x+6=0.3x | | 7(6x+3)-8= | | y=346+3x/6 | | 10z-10=9x+8 | | 7x^2-6x+9=0 | | -6(5+x)+(13x+1)=0 | | .5x-.25x+6=0.3x | | 0.5(8n-4.6)=3.8 | | 1/2(2x+8)=32 | | -10x^2+19x+15=0 | | -(5x+5)-4+8x=0 | | 10x+8y=54 | | 3x+4/5+7x-8/6=3 | | 2d+9=19 | | 10=2w+4 | | 3x-2(5-4x)=12 | | x^2=15x+34 | | 1/3+m=1/9 |

Equations solver categories