3y^2+5y-10=0

Simple and best practice solution for 3y^2+5y-10=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 3y^2+5y-10=0 equation:


Simplifying
3y2 + 5y + -10 = 0

Reorder the terms:
-10 + 5y + 3y2 = 0

Solving
-10 + 5y + 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'.
-3.333333333 + 1.666666667y + y2 = 0

Move the constant term to the right:

Add '3.333333333' to each side of the equation.
-3.333333333 + 1.666666667y + 3.333333333 + y2 = 0 + 3.333333333

Reorder the terms:
-3.333333333 + 3.333333333 + 1.666666667y + y2 = 0 + 3.333333333

Combine like terms: -3.333333333 + 3.333333333 = 0.000000000
0.000000000 + 1.666666667y + y2 = 0 + 3.333333333
1.666666667y + y2 = 0 + 3.333333333

Combine like terms: 0 + 3.333333333 = 3.333333333
1.666666667y + y2 = 3.333333333

The y term is 1.666666667y.  Take half its coefficient (0.8333333335).
Square it (0.6944444447) and add it to both sides.

Add '0.6944444447' to each side of the equation.
1.666666667y + 0.6944444447 + y2 = 3.333333333 + 0.6944444447

Reorder the terms:
0.6944444447 + 1.666666667y + y2 = 3.333333333 + 0.6944444447

Combine like terms: 3.333333333 + 0.6944444447 = 4.0277777777
0.6944444447 + 1.666666667y + y2 = 4.0277777777

Factor a perfect square on the left side:
(y + 0.8333333335)(y + 0.8333333335) = 4.0277777777

Calculate the square root of the right side: 2.00693243

Break this problem into two subproblems by setting 
(y + 0.8333333335) equal to 2.00693243 and -2.00693243.

Subproblem 1

y + 0.8333333335 = 2.00693243 Simplifying y + 0.8333333335 = 2.00693243 Reorder the terms: 0.8333333335 + y = 2.00693243 Solving 0.8333333335 + y = 2.00693243 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + y = 2.00693243 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + y = 2.00693243 + -0.8333333335 y = 2.00693243 + -0.8333333335 Combine like terms: 2.00693243 + -0.8333333335 = 1.1735990965 y = 1.1735990965 Simplifying y = 1.1735990965

Subproblem 2

y + 0.8333333335 = -2.00693243 Simplifying y + 0.8333333335 = -2.00693243 Reorder the terms: 0.8333333335 + y = -2.00693243 Solving 0.8333333335 + y = -2.00693243 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + y = -2.00693243 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + y = -2.00693243 + -0.8333333335 y = -2.00693243 + -0.8333333335 Combine like terms: -2.00693243 + -0.8333333335 = -2.8402657635 y = -2.8402657635 Simplifying y = -2.8402657635

Solution

The solution to the problem is based on the solutions from the subproblems. y = {1.1735990965, -2.8402657635}

See similar equations:

| x(x^2-7)=(x^2+1)(x-3) | | -8(7+3b)+4=38-6b | | -5q-7-9q+6= | | -11x+8x=24 | | X^4-2x^3+x^2+14x+10=0 | | 5t=3p-9 | | 8w-23=-7(w-1) | | http://www.geteasysolution.com/7e-4=31 | | 4/10÷1/2 | | 5t+3p=9 | | (8x-24)/x^4 | | -21-5x=5x-3(7+8x) | | (3f^2-f+7f)+(2f^2-3f-4)= | | -4(-4+1)=-100 | | 3y-21+xy-7x=0 | | (x-7)=31 | | 3x+4x-7+5x+4=180 | | 4x-7(2x-3)=-19 | | 1/2-4/6 | | -4+9b=50 | | 21-3x=7+4x | | 13p=-104 | | X+15+4x=5y | | 5x-9-x=27+2x | | 6(v+7)+2v=-30 | | (4q+2q^3-1)+(1-2q+6q^2)= | | 8(x+1)-3=37 | | 4(3a-2)=2(3a-2) | | -h-67=24 | | 26x+14=26x+79 | | 7.48x+81=55.9504+9x | | 12a-8=10a+6 |

Equations solver categories