(-2x^2+9x^2)+(6x+2x)+(6-1)=

Simple and best practice solution for (-2x^2+9x^2)+(6x+2x)+(6-1)= 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 (-2x^2+9x^2)+(6x+2x)+(6-1)= equation:


Simplifying
(-2x2 + 9x2) + (6x + 2x) + (6 + -1) = 0

Combine like terms: -2x2 + 9x2 = 7x2
(7x2) + (6x + 2x) + (6 + -1) = 0
(7x2) + (6x + 2x) + (6 + -1) = 0

Combine like terms: 6x + 2x = 8x
(7x2) + (8x) + (6 + -1) = 0
(7x2) + (8x) + (6 + -1) = 0

Combine like terms: 6 + -1 = 5
(7x2) + (8x) + (5) = 0
(7x2) + (8x) + 5 = 0

Reorder the terms:
5 + (8x) + (7x2) = 0

Solving
5 + (8x) + (7x2) = 0

Solving for variable 'x'.

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

Divide each side by '7'.
0.7142857143 + (1.142857143x) + x2 = 0

Move the constant term to the right:

Add '-0.7142857143' to each side of the equation.
0.7142857143 + (1.142857143x) + -0.7142857143 + x2 = 0 + -0.7142857143

Reorder the terms:
0.7142857143 + -0.7142857143 + (1.142857143x) + x2 = 0 + -0.7142857143

Combine like terms: 0.7142857143 + -0.7142857143 = 0.0000000000
0.0000000000 + (1.142857143x) + x2 = 0 + -0.7142857143
(1.142857143x) + x2 = 0 + -0.7142857143

Combine like terms: 0 + -0.7142857143 = -0.7142857143
(1.142857143x) + x2 = -0.7142857143

The x term is (1.142857143x).  Take half its coefficient (0.5714285715).
Square it (0.3265306123) and add it to both sides.

Add '0.3265306123' to each side of the equation.
(1.142857143x) + 0.3265306123 + x2 = -0.7142857143 + 0.3265306123

Reorder the terms:
0.3265306123 + (1.142857143x) + x2 = -0.7142857143 + 0.3265306123

Combine like terms: -0.7142857143 + 0.3265306123 = -0.387755102
0.3265306123 + (1.142857143x) + x2 = -0.387755102

Factor a perfect square on the left side:
((x) + 0.5714285715)((x) + 0.5714285715) = -0.387755102

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 3x^2+6x+5= | | -10x+11=10-14 | | 8x+4=7x-4 | | 11x-2=13x+10 | | y/16=z | | 4+9x=25+2x | | 9x^2+24x=x^2+32x | | Logs=0.95 | | 14x+56=6x-8 | | X+4x+10+70=180 | | 11x+70x+9x=180 | | .016(x)=751.28 | | -6-5(4)= | | .16(x)=751.28 | | r-10.25=0.50 | | 18-3.6-0.8= | | a-5x= | | (3x+2)+10=2 | | 2x^2+18x-5=0 | | 3ln(x)=13 | | 5timesx=125 | | (-2x^2+9x^2)+(8x+3x)+(3-1)= | | 8+2.4(2)= | | 56+355= | | (n+8)=4n+32 | | 9/(8x^2)y-13/4xy | | -5(m+9)+7=3m+12 | | 2x-(2x+12)=-12 | | 4/175 | | 5x^2-5x=6 | | 65-(5x+13)=5(x+6)+x | | -6x^2-4x=-11 |

Equations solver categories