7x^2+12x+64=0

Simple and best practice solution for 7x^2+12x+64=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 7x^2+12x+64=0 equation:


Simplifying
7x2 + 12x + 64 = 0

Reorder the terms:
64 + 12x + 7x2 = 0

Solving
64 + 12x + 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'.
9.142857143 + 1.714285714x + x2 = 0

Move the constant term to the right:

Add '-9.142857143' to each side of the equation.
9.142857143 + 1.714285714x + -9.142857143 + x2 = 0 + -9.142857143

Reorder the terms:
9.142857143 + -9.142857143 + 1.714285714x + x2 = 0 + -9.142857143

Combine like terms: 9.142857143 + -9.142857143 = 0.000000000
0.000000000 + 1.714285714x + x2 = 0 + -9.142857143
1.714285714x + x2 = 0 + -9.142857143

Combine like terms: 0 + -9.142857143 = -9.142857143
1.714285714x + x2 = -9.142857143

The x term is 1.714285714x.  Take half its coefficient (0.857142857).
Square it (0.7346938773) and add it to both sides.

Add '0.7346938773' to each side of the equation.
1.714285714x + 0.7346938773 + x2 = -9.142857143 + 0.7346938773

Reorder the terms:
0.7346938773 + 1.714285714x + x2 = -9.142857143 + 0.7346938773

Combine like terms: -9.142857143 + 0.7346938773 = -8.4081632657
0.7346938773 + 1.714285714x + x2 = -8.4081632657

Factor a perfect square on the left side:
(x + 0.857142857)(x + 0.857142857) = -8.4081632657

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 7z+4=4z+16 | | q-2(2-9)=0 | | y=1/2+b | | (3b+2p)(3b-2p)= | | x/14+2=-2 | | 7x+2x=8xy-3 | | 3/4(r+49)=23/4 | | 34(r+49)=234 | | 2x+4x=184 | | 4(y-3)=y-15 | | 2x-(x+2)=4x+11 | | 9y-3x+27=0 | | 4x+2x=184 | | y+3/2=4 | | 4x-7(-4x-3)=181 | | -2x^2-x+105=0 | | 4x+-9=7 | | 36-16= | | 19-13(-6)=-17(-6)-5 | | -40*27= | | 16=d/14-12/14 | | 2x-4y+5z=-33 | | -128-105= | | -6-5p=-7p+4(-5+p) | | X+6-5=-4 | | 4*x^2=6 | | (x-7)(x+12)= | | (1/4)/(3/4) | | 2(2+-2x)=4 | | -50+2x=-x+22 | | 0=4x^2-2x-1 | | 3m+6-2m=22 |

Equations solver categories