7x-2x(3+4x)=19

Simple and best practice solution for 7x-2x(3+4x)=19 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-2x(3+4x)=19 equation:


Simplifying
7x + -2x(3 + 4x) = 19
7x + (3 * -2x + 4x * -2x) = 19
7x + (-6x + -8x2) = 19

Combine like terms: 7x + -6x = 1x
1x + -8x2 = 19

Solving
1x + -8x2 = 19

Solving for variable 'x'.

Reorder the terms:
-19 + 1x + -8x2 = 19 + -19

Combine like terms: 19 + -19 = 0
-19 + 1x + -8x2 = 0

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

Divide each side by '-8'.
2.375 + -0.125x + x2 = 0

Move the constant term to the right:

Add '-2.375' to each side of the equation.
2.375 + -0.125x + -2.375 + x2 = 0 + -2.375

Reorder the terms:
2.375 + -2.375 + -0.125x + x2 = 0 + -2.375

Combine like terms: 2.375 + -2.375 = 0.000
0.000 + -0.125x + x2 = 0 + -2.375
-0.125x + x2 = 0 + -2.375

Combine like terms: 0 + -2.375 = -2.375
-0.125x + x2 = -2.375

The x term is -0.125x.  Take half its coefficient (-0.0625).
Square it (0.00390625) and add it to both sides.

Add '0.00390625' to each side of the equation.
-0.125x + 0.00390625 + x2 = -2.375 + 0.00390625

Reorder the terms:
0.00390625 + -0.125x + x2 = -2.375 + 0.00390625

Combine like terms: -2.375 + 0.00390625 = -2.37109375
0.00390625 + -0.125x + x2 = -2.37109375

Factor a perfect square on the left side:
(x + -0.0625)(x + -0.0625) = -2.37109375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 4+9r+14m-3r-4m-7= | | x-8=2x+2-5x | | 101-(6x+5)=6(x+3)+x | | 4*1-6y-10y=31 | | 17x+6=114+5xequation | | 16*x^4-x^2=0 | | 5y-7+y+23=6y+20-4y | | -2-3m=-4+14 | | 9r+8=29r+12 | | (4w+7)(1+w)=0 | | 4x^2+24x+40=4 | | 13x+y=2 | | 8t-10=-7+5 | | 3+p=33 | | -6*x^2+5*x+4=0 | | -9x-21=35+2x | | 9(z+6)=9(z-3) | | -2x+14=-8 | | 6s+12=3(2s-8) | | 25*x^2+15*x+2=0 | | -5D+15+3D=-18 | | 5p=3+2p | | 3x+6y+2x=8 | | -d=17-6c | | 30x-6y=60 | | 19x-17y=-3 | | 5x=3x+5+7 | | 7x-(-5)=-9 | | 75=15(y+1) | | (3y)x(3x)=180 | | cot(x)=sen(x) | | 3y=-x+9 |

Equations solver categories