3x^2-6x-7=-17

Simple and best practice solution for 3x^2-6x-7=-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 3x^2-6x-7=-17 equation:


Simplifying
3x2 + -6x + -7 = -17

Reorder the terms:
-7 + -6x + 3x2 = -17

Solving
-7 + -6x + 3x2 = -17

Solving for variable 'x'.

Reorder the terms:
-7 + 17 + -6x + 3x2 = -17 + 17

Combine like terms: -7 + 17 = 10
10 + -6x + 3x2 = -17 + 17

Combine like terms: -17 + 17 = 0
10 + -6x + 3x2 = 0

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

Divide each side by '3'.
3.333333333 + -2x + x2 = 0

Move the constant term to the right:

Add '-3.333333333' to each side of the equation.
3.333333333 + -2x + -3.333333333 + x2 = 0 + -3.333333333

Reorder the terms:
3.333333333 + -3.333333333 + -2x + x2 = 0 + -3.333333333

Combine like terms: 3.333333333 + -3.333333333 = 0.000000000
0.000000000 + -2x + x2 = 0 + -3.333333333
-2x + x2 = 0 + -3.333333333

Combine like terms: 0 + -3.333333333 = -3.333333333
-2x + x2 = -3.333333333

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 = -3.333333333 + 1

Reorder the terms:
1 + -2x + x2 = -3.333333333 + 1

Combine like terms: -3.333333333 + 1 = -2.333333333
1 + -2x + x2 = -2.333333333

Factor a perfect square on the left side:
(x + -1)(x + -1) = -2.333333333

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 8n+6+6n=20 | | 6x+10y=500 | | 4x+1+2x+59=180 | | 6m^2-6m-4= | | 2(3-4)+12+4(x+4)+3x=7(x+2)-4x+4(2x+1)+16 | | p-15=40 | | 24x^2=32 | | 5x+4=3x+-11 | | 10a+50=-26 | | 2-(-4x)=10 | | 60=-5(6n+6) | | 6(2n-4)=7(n-7) | | 10x+2=5y-8 | | 2.2+r=5.7 | | -9=4(w+3)-7w | | 36-8a=4(5-4a) | | 5(2x-4)-8(2x-4)=3(2x-4)-2(5x-4) | | -2(x+1)=-12 | | B^12=16 | | -6x-6(-x+3)=162 | | 27x+830=27x+101 | | 27th+830=27x+101 | | 2x+3=5y+3 | | 27x+830=2.7x+101 | | x^2-2x+2x+64=0 | | 5b^2+4=4b | | x+3+3x=19 | | 5x-7=x+3(4+x) | | 27th+830=2.7x+101 | | x+6(x-2)+15=8x+7 | | -8(-2-6r)=-4(-8r+4) | | -79-12x=173-5x |

Equations solver categories