3y^2+7y+15=

Simple and best practice solution for 3y^2+7y+15= 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 3y^2+7y+15= equation:


Simplifying
3y2 + 7y + 15 = 0

Reorder the terms:
15 + 7y + 3y2 = 0

Solving
15 + 7y + 3y2 = 0

Solving for variable 'y'.

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

Divide each side by '3'.
5 + 2.333333333y + y2 = 0

Move the constant term to the right:

Add '-5' to each side of the equation.
5 + 2.333333333y + -5 + y2 = 0 + -5

Reorder the terms:
5 + -5 + 2.333333333y + y2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 2.333333333y + y2 = 0 + -5
2.333333333y + y2 = 0 + -5

Combine like terms: 0 + -5 = -5
2.333333333y + y2 = -5

The y term is 2.333333333y.  Take half its coefficient (1.166666667).
Square it (1.361111112) and add it to both sides.

Add '1.361111112' to each side of the equation.
2.333333333y + 1.361111112 + y2 = -5 + 1.361111112

Reorder the terms:
1.361111112 + 2.333333333y + y2 = -5 + 1.361111112

Combine like terms: -5 + 1.361111112 = -3.638888888
1.361111112 + 2.333333333y + y2 = -3.638888888

Factor a perfect square on the left side:
(y + 1.166666667)(y + 1.166666667) = -3.638888888

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 5y-9=7x-(-4) | | -5=-2(x-9) | | a+3a=180 | | 50+2(3x-15)+x=8x+10 | | 2x=36-c | | 2.50-4.25b=5 | | 1-8k=14+5k | | 2.50+4.25b=5 | | 21(8b/7) | | 5s+8=7s-2 | | 5x^2-23xy+12y^2=0 | | -3(2x-30)=-6x+9 | | 9+4y=3(3+y)+y | | 3a+4b-5-a+7b+3-b= | | 8x-41+9x+17=180 | | .96-.79=.21y+.46 | | -12w-11z-12w+11w= | | 17-9x=-11-2x | | -3x+(-6x)=-17-1 | | -4=-3a+4a | | 5+2p-2=9p+12-6p | | 8z-7=8z-7+5z | | 12+3x-18+2x=7x-6-8x | | 3b-4/2=c | | 5x+3(x-4)=4 | | 2x-3+3x=17 | | 6x-(3x-1)=1.999 | | 10p+15=15p+10 | | 2.10+(0.80*m)=11.70 | | 0.50x+0.50(60)=0.25(86) | | 7x+1=8x+1 | | 350=520-r |

Equations solver categories