5x^2+10x+7=0

Simple and best practice solution for 5x^2+10x+7=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 5x^2+10x+7=0 equation:


Simplifying
5x2 + 10x + 7 = 0

Reorder the terms:
7 + 10x + 5x2 = 0

Solving
7 + 10x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
1.4 + 2x + x2 = 0

Move the constant term to the right:

Add '-1.4' to each side of the equation.
1.4 + 2x + -1.4 + x2 = 0 + -1.4

Reorder the terms:
1.4 + -1.4 + 2x + x2 = 0 + -1.4

Combine like terms: 1.4 + -1.4 = 0.0
0.0 + 2x + x2 = 0 + -1.4
2x + x2 = 0 + -1.4

Combine like terms: 0 + -1.4 = -1.4
2x + x2 = -1.4

The x term is 2x.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2x + 1 + x2 = -1.4 + 1

Reorder the terms:
1 + 2x + x2 = -1.4 + 1

Combine like terms: -1.4 + 1 = -0.4
1 + 2x + x2 = -0.4

Factor a perfect square on the left side:
(x + 1)(x + 1) = -0.4

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| -5x-6y=-9 | | 2y+44=-8(y-3) | | 34+3x=157 | | (8x+3)(3x^2-20x-7)=0 | | x+(x-3)+(x-6)=30 | | 3x+12y=-3 | | 8x+6x+4+9=5x+5+8 | | whatisx=600 | | 4x^2-16y^2+12x+16y+69=0 | | .8x-.2y=1.5 | | 24y-8-10y=-2 | | x(x^2-x-6x)=0 | | 1.5x+y=0 | | 9+x=-11 | | 36x^2-12x-48=0 | | (7b-6)-2(3b+2)=-7 | | x+x+x+2x-5=38 | | 7x-2(x-3)=2.5(2x+4) | | 10(x+2)+4(x-4)=2x-2 | | 2x+13+3y+24+3x-24=180 | | -8x^2+5x+7=0 | | 15+.07(x)=y | | x^2-30x-1458.074=0 | | 26y-4=15y+6 | | 12(x*x)-4x=5 | | 9n+24=-3n | | x^2-10n+22=-2 | | a^2-14a+3=-10 | | 2n=200 | | 7n+14=7n | | 4(b)+15(4)+531(1)=723 | | 4x+30=5x+4x |

Equations solver categories