8x^2=3x-7

Simple and best practice solution for 8x^2=3x-7 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 8x^2=3x-7 equation:


Simplifying
8x2 = 3x + -7

Reorder the terms:
8x2 = -7 + 3x

Solving
8x2 = -7 + 3x

Solving for variable 'x'.

Reorder the terms:
7 + -3x + 8x2 = -7 + 3x + 7 + -3x

Reorder the terms:
7 + -3x + 8x2 = -7 + 7 + 3x + -3x

Combine like terms: -7 + 7 = 0
7 + -3x + 8x2 = 0 + 3x + -3x
7 + -3x + 8x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
7 + -3x + 8x2 = 0

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

Divide each side by '8'.
0.875 + -0.375x + x2 = 0

Move the constant term to the right:

Add '-0.875' to each side of the equation.
0.875 + -0.375x + -0.875 + x2 = 0 + -0.875

Reorder the terms:
0.875 + -0.875 + -0.375x + x2 = 0 + -0.875

Combine like terms: 0.875 + -0.875 = 0.000
0.000 + -0.375x + x2 = 0 + -0.875
-0.375x + x2 = 0 + -0.875

Combine like terms: 0 + -0.875 = -0.875
-0.375x + x2 = -0.875

The x term is -0.375x.  Take half its coefficient (-0.1875).
Square it (0.03515625) and add it to both sides.

Add '0.03515625' to each side of the equation.
-0.375x + 0.03515625 + x2 = -0.875 + 0.03515625

Reorder the terms:
0.03515625 + -0.375x + x2 = -0.875 + 0.03515625

Combine like terms: -0.875 + 0.03515625 = -0.83984375
0.03515625 + -0.375x + x2 = -0.83984375

Factor a perfect square on the left side:
(x + -0.1875)(x + -0.1875) = -0.83984375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 6u-5=10 | | 10-2y=-2+2y | | (r+5)(r-9)=0 | | 4h-2=34 | | p+4=-8 | | 9+3e=36 | | 8d+2=82 | | 3X^4+4X^3-4X^2-16=0 | | u+3=10 | | 4k^2+3k-76=0 | | x^3+3x^2-6x+3x=0 | | 3.5x+48.4=5.5-10.8x | | 5b^2-8b+3=0 | | 8y+4x=-3x+2y | | F(x)=60x^4+86x^3-46x^2-43x+8 | | 11(x-5)=2(x+6)-16 | | 5(y+6)+2=67 | | 4x+8y=-3x+27 | | 2.8x+34.9+7.7-10.8x= | | 10a^2+10a-8=0 | | -4(-3x+1)=28 | | 8[4+2(6-1)]+7= | | 4(x+5+9)=36 | | 81b^2-1=63 | | X^2=x-4 | | -4(3x+1)=28 | | 4a^2-2=34 | | 14564581458x=62556 | | X^2+11X-38.25=0 | | 2v^2-9=-1 | | 4+8x=-3+x | | 36a^2-10=26 |

Equations solver categories