18+11y+2y^2=

Simple and best practice solution for 18+11y+2y^2= 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 18+11y+2y^2= equation:


Simplifying
18 + 11y + 2y2 = 0

Solving
18 + 11y + 2y2 = 0

Solving for variable 'y'.

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

Divide each side by '2'.
9 + 5.5y + y2 = 0

Move the constant term to the right:

Add '-9' to each side of the equation.
9 + 5.5y + -9 + y2 = 0 + -9

Reorder the terms:
9 + -9 + 5.5y + y2 = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 5.5y + y2 = 0 + -9
5.5y + y2 = 0 + -9

Combine like terms: 0 + -9 = -9
5.5y + y2 = -9

The y term is 5.5y.  Take half its coefficient (2.75).
Square it (7.5625) and add it to both sides.

Add '7.5625' to each side of the equation.
5.5y + 7.5625 + y2 = -9 + 7.5625

Reorder the terms:
7.5625 + 5.5y + y2 = -9 + 7.5625

Combine like terms: -9 + 7.5625 = -1.4375
7.5625 + 5.5y + y2 = -1.4375

Factor a perfect square on the left side:
(y + 2.75)(y + 2.75) = -1.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 17-2x=x-7 | | 76=a+3a+(a-4) | | 3(c+4)=-8 | | 32X^4-2=0 | | 6(n-3)-(4+7n)=-2n | | 4(4x+12)=96 | | 17-4z+2z=13 | | -2(4s-3)-6=2(6s+9)-2 | | -3x-5+2x=6 | | 0=2x^3+6x^2-12x-16 | | 3+2x=42 | | -3-4x=1 | | 3w^6-2w^6+8= | | -27-7x=2x+18 | | -2x-6=2 | | 7x+14=63 | | x^6=42 | | 6x-6+4x=-106 | | 3X+6=8X-9 | | x^6=36 | | -4x+1+5x=7 | | x^4-10x^2+16=0 | | 13x-7x=-4-12 | | 6x^2-22x=40 | | 2(9x-8)=-22 | | 3x+6+3x=-18 | | 16-7d=3d | | -5(-2+a)=8(-a-9) | | 7p-30=p+6 | | 4x+2+3x=9 | | 2X+6+3X-1+4X=-22 | | x^6=50 |

Equations solver categories