-y^2-3y-28=0

Simple and best practice solution for -y^2-3y-28=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 -y^2-3y-28=0 equation:


Simplifying
-1y2 + -3y + -28 = 0

Reorder the terms:
-28 + -3y + -1y2 = 0

Solving
-28 + -3y + -1y2 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '-1'.
-1(28 + 3y + y2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(28 + 3y + y2)' equal to zero and attempt to solve: Simplifying 28 + 3y + y2 = 0 Solving 28 + 3y + y2 = 0 Begin completing the square. Move the constant term to the right: Add '-28' to each side of the equation. 28 + 3y + -28 + y2 = 0 + -28 Reorder the terms: 28 + -28 + 3y + y2 = 0 + -28 Combine like terms: 28 + -28 = 0 0 + 3y + y2 = 0 + -28 3y + y2 = 0 + -28 Combine like terms: 0 + -28 = -28 3y + y2 = -28 The y term is 3y. Take half its coefficient (1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. 3y + 2.25 + y2 = -28 + 2.25 Reorder the terms: 2.25 + 3y + y2 = -28 + 2.25 Combine like terms: -28 + 2.25 = -25.75 2.25 + 3y + y2 = -25.75 Factor a perfect square on the left side: (y + 1.5)(y + 1.5) = -25.75 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

See similar equations:

| 0=x^3-x^2+x+10 | | .5(x+9)-3=7 | | 90=(x-10)+(2x+34) | | (7x-5yz)(7x-5yz)= | | 1.2x+4.3n=2.1-x | | x+6=5x | | 500x+100(2x)=2800 | | (x-10)+(2x+34)= | | 3+-7= | | (-15)-(-8)= | | x+(20x+30)=270 | | 3x^2+4y= | | 12=3x+2*15x-3x | | 2n^2-n-3=0 | | x+3x+2x-20=340 | | 30=a(a-7) | | 6x-3-6x+8=11x | | -4q+3q=-6 | | 30x=5 | | 3-4=-1 | | -5.3=2.2v-86 | | 9(4-y)+2=-2(y-2)-3 | | x+3-9x=9x-31-9x | | 3(2x)+5x=11 | | 14x-15=11x-13 | | 18(x+3/18)=18(7/9+x-5/2) | | x+3/18=7/9+x-5/2 | | 4x^2-x+42=0 | | x/3=x/4-6 | | 20x^2-95x-315=0 | | 10y-(y)(y)=40 | | 2x+36=624 |

Equations solver categories