4x^2+15x+15=0

Simple and best practice solution for 4x^2+15x+15=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 4x^2+15x+15=0 equation:


Simplifying
4x2 + 15x + 15 = 0

Reorder the terms:
15 + 15x + 4x2 = 0

Solving
15 + 15x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
3.75 + 3.75x + x2 = 0

Move the constant term to the right:

Add '-3.75' to each side of the equation.
3.75 + 3.75x + -3.75 + x2 = 0 + -3.75

Reorder the terms:
3.75 + -3.75 + 3.75x + x2 = 0 + -3.75

Combine like terms: 3.75 + -3.75 = 0.00
0.00 + 3.75x + x2 = 0 + -3.75
3.75x + x2 = 0 + -3.75

Combine like terms: 0 + -3.75 = -3.75
3.75x + x2 = -3.75

The x term is 3.75x.  Take half its coefficient (1.875).
Square it (3.515625) and add it to both sides.

Add '3.515625' to each side of the equation.
3.75x + 3.515625 + x2 = -3.75 + 3.515625

Reorder the terms:
3.515625 + 3.75x + x2 = -3.75 + 3.515625

Combine like terms: -3.75 + 3.515625 = -0.234375
3.515625 + 3.75x + x2 = -0.234375

Factor a perfect square on the left side:
(x + 1.875)(x + 1.875) = -0.234375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 2/3x=10/24 | | x+(x*.07)=1000 | | 0.2w-29.7=67.1 | | M*m+4n*n+4mn-8m-16n+15=0 | | 5/6=-2/5x+1/3x | | g(x)=x^2+10x+29 | | a(m+n)=ab | | 2(y+1)(y-5)=0 | | v=180+16(4)-4 | | v=180+16(3)-3 | | t=(-40*2t)/(-2t-40) | | 3+4b=27 | | F=9/5-20+32 | | A=1/2(36)(9) | | A=1/236*9 | | -25=3 | | 5x+25y=-5 | | -4m=9 | | 2k-5/-9 | | -2x=-4(-7y) | | ABM=C | | 3y+-2x=-4 | | 4x^2+4x=-65 | | 25-3x=2x+10 | | y=-x+5/9 | | 1/6x+1/3x+9=x | | 5/6x=20 | | 17/-15n^-1 | | 1.5x-1.5x^2=x | | 1.5x(1-x)=0 | | x^2+22x+43.12=0 | | -1.5x^2-0.5x=0 |

Equations solver categories