x^2+7x=-17

Simple and best practice solution for x^2+7x=-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+7x=-17 equation:


Simplifying
x2 + 7x = -17

Reorder the terms:
7x + x2 = -17

Solving
7x + x2 = -17

Solving for variable 'x'.

Reorder the terms:
17 + 7x + x2 = -17 + 17

Combine like terms: -17 + 17 = 0
17 + 7x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-17' to each side of the equation.
17 + 7x + -17 + x2 = 0 + -17

Reorder the terms:
17 + -17 + 7x + x2 = 0 + -17

Combine like terms: 17 + -17 = 0
0 + 7x + x2 = 0 + -17
7x + x2 = 0 + -17

Combine like terms: 0 + -17 = -17
7x + x2 = -17

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 = -17 + 12.25

Reorder the terms:
12.25 + 7x + x2 = -17 + 12.25

Combine like terms: -17 + 12.25 = -4.75
12.25 + 7x + x2 = -4.75

Factor a perfect square on the left side:
(x + 3.5)(x + 3.5) = -4.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 3(5x+5)=6(x+4) | | 3(2x-4)=9(x-3) | | 8x-3-(-3-13)=-6-(y+-3) | | 2x-3(4)=0 | | 12x-16=5x+40 | | 37-7=12 | | (3x+5)(x+2)(x-1)=0 | | 9(y-6)=18 | | f(x)=-x^4+8x^2-16 | | 303-0.003= | | 0.003-303= | | 6q^2-2q=5q^2-4q+63 | | -29=9-5x | | 0.003-3.03= | | v/3-8=-6 | | 2x+2(5+x)=10 | | 54=7u-9 | | 13/5=x/5 | | 27=9(v-6) | | 0=8c | | -6-x=y | | (2x+3)(x^2+x-2)=0 | | 91x=7 | | -4=8h-4 | | 24x^2-96x-504=0 | | 1.25=0.75+5 | | (2x+3)+(2x)+(2x+2)=(2x)+(2x)+(3x+3) | | 2J=-24 | | 3c+9=57 | | s−3/6=2/6 | | F(x)=-x^3+9x^2-15x-4 | | 0=-4.9x^2+1000 |

Equations solver categories