11x^2+16x+72=0

Simple and best practice solution for 11x^2+16x+72=0 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 11x^2+16x+72=0 equation:


Simplifying
11x2 + 16x + 72 = 0

Reorder the terms:
72 + 16x + 11x2 = 0

Solving
72 + 16x + 11x2 = 0

Solving for variable 'x'.

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

Divide each side by '11'.
6.545454545 + 1.454545455x + x2 = 0

Move the constant term to the right:

Add '-6.545454545' to each side of the equation.
6.545454545 + 1.454545455x + -6.545454545 + x2 = 0 + -6.545454545

Reorder the terms:
6.545454545 + -6.545454545 + 1.454545455x + x2 = 0 + -6.545454545

Combine like terms: 6.545454545 + -6.545454545 = 0.000000000
0.000000000 + 1.454545455x + x2 = 0 + -6.545454545
1.454545455x + x2 = 0 + -6.545454545

Combine like terms: 0 + -6.545454545 = -6.545454545
1.454545455x + x2 = -6.545454545

The x term is 1.454545455x.  Take half its coefficient (0.7272727275).
Square it (0.5289256202) and add it to both sides.

Add '0.5289256202' to each side of the equation.
1.454545455x + 0.5289256202 + x2 = -6.545454545 + 0.5289256202

Reorder the terms:
0.5289256202 + 1.454545455x + x2 = -6.545454545 + 0.5289256202

Combine like terms: -6.545454545 + 0.5289256202 = -6.0165289248
0.5289256202 + 1.454545455x + x2 = -6.0165289248

Factor a perfect square on the left side:
(x + 0.7272727275)(x + 0.7272727275) = -6.0165289248

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 3x+3x+1+15=180 | | 3x+7=2+2x | | 18+4y=12 | | 67-3x=2x-7 | | 3r^2+16r-64=0 | | -2x-9=x | | -(a-9)=8 | | 9h+3-4h=18 | | 17+x=42 | | 3a-8-12a=-35 | | sqrt(7X^2)+sqrt(28x)=0 | | -1x-9=x | | X+19.5=35.7 | | -84.271=-3.99n+7.1 | | 4x+6=7x+30 | | 7(n-2)=4n-16 | | 7x+12-3=.5(8x+12) | | 5x-10y=30 | | 23+0.12x=0.16x | | 225x+987x= | | 2=5n-4 | | 4b^2+28b+49= | | 5x-8=2x+31 | | 40+7.50n=12.50n | | X-18=54 | | -100x^2-80x+128=0 | | 1.5-y=2.5-7 | | (x-8)(x-8)=45 | | 34-1x-8=7x-6 | | 3S+9C=75 | | 2x-3(5x+6)=-122 | | 5(2x+6)=-4(5-2f)+3x |

Equations solver categories