2x^2+9x+79=0

Simple and best practice solution for 2x^2+9x+79=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 2x^2+9x+79=0 equation:


Simplifying
2x2 + 9x + 79 = 0

Reorder the terms:
79 + 9x + 2x2 = 0

Solving
79 + 9x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
39.5 + 4.5x + x2 = 0

Move the constant term to the right:

Add '-39.5' to each side of the equation.
39.5 + 4.5x + -39.5 + x2 = 0 + -39.5

Reorder the terms:
39.5 + -39.5 + 4.5x + x2 = 0 + -39.5

Combine like terms: 39.5 + -39.5 = 0.0
0.0 + 4.5x + x2 = 0 + -39.5
4.5x + x2 = 0 + -39.5

Combine like terms: 0 + -39.5 = -39.5
4.5x + x2 = -39.5

The x term is 4.5x.  Take half its coefficient (2.25).
Square it (5.0625) and add it to both sides.

Add '5.0625' to each side of the equation.
4.5x + 5.0625 + x2 = -39.5 + 5.0625

Reorder the terms:
5.0625 + 4.5x + x2 = -39.5 + 5.0625

Combine like terms: -39.5 + 5.0625 = -34.4375
5.0625 + 4.5x + x2 = -34.4375

Factor a perfect square on the left side:
(x + 2.25)(x + 2.25) = -34.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| -2y=1.72 | | X^2*Y^2-2*X=4-4*Y | | 0.16(y-1)+0.10y=0.02y-.05(20) | | 5A*(2(M^2+1))= | | -0.3x+4.66=-0.1x+3.26 | | 3z+1.6=4z+5.6 | | -5y-13=8y+13 | | 4(x+1.39)=3x | | 3a+1.6=4a+5.5 | | 8x+4=-3+5x+16 | | 6x-4x=7x-9x-8 | | -9(x-3)-30=-3 | | 0.70x+0.70(100)=0.35(140) | | (5A)*(2M^2+2)= | | 18x-7=1+14x | | (8m^4p^3)*(3a^4)= | | 5.6x-1.3=-2 | | 7-7x=167-35x | | 3.4x+5.4=-1.4 | | 6x+14=-84-8 | | 1=0.3x-0.5x-3 | | 5m+4n=33 | | 10970=x^2+20x+45 | | y-5+8-4y=6 | | 36-5n+4n=36-5n+4n | | 10970=x^2+0x+45 | | 4(1+x)=20 | | 3+2*w+w+3+2*w+w=36 | | 6-6+9= | | w+9=6w | | 25a+25b= | | -2+7=5-(7p+4) |

Equations solver categories