4y^2+6y-8=0

Simple and best practice solution for 4y^2+6y-8=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 4y^2+6y-8=0 equation:


Simplifying
4y2 + 6y + -8 = 0

Reorder the terms:
-8 + 6y + 4y2 = 0

Solving
-8 + 6y + 4y2 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-4 + 3y + 2y2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-4 + 3y + 2y2)' equal to zero and attempt to solve: Simplifying -4 + 3y + 2y2 = 0 Solving -4 + 3y + 2y2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -2 + 1.5y + y2 = 0 Move the constant term to the right: Add '2' to each side of the equation. -2 + 1.5y + 2 + y2 = 0 + 2 Reorder the terms: -2 + 2 + 1.5y + y2 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + 1.5y + y2 = 0 + 2 1.5y + y2 = 0 + 2 Combine like terms: 0 + 2 = 2 1.5y + y2 = 2 The y term is 1.5y. Take half its coefficient (0.75). Square it (0.5625) and add it to both sides. Add '0.5625' to each side of the equation. 1.5y + 0.5625 + y2 = 2 + 0.5625 Reorder the terms: 0.5625 + 1.5y + y2 = 2 + 0.5625 Combine like terms: 2 + 0.5625 = 2.5625 0.5625 + 1.5y + y2 = 2.5625 Factor a perfect square on the left side: (y + 0.75)(y + 0.75) = 2.5625 Calculate the square root of the right side: 1.600781059 Break this problem into two subproblems by setting (y + 0.75) equal to 1.600781059 and -1.600781059.

Subproblem 1

y + 0.75 = 1.600781059 Simplifying y + 0.75 = 1.600781059 Reorder the terms: 0.75 + y = 1.600781059 Solving 0.75 + y = 1.600781059 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + y = 1.600781059 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + y = 1.600781059 + -0.75 y = 1.600781059 + -0.75 Combine like terms: 1.600781059 + -0.75 = 0.850781059 y = 0.850781059 Simplifying y = 0.850781059

Subproblem 2

y + 0.75 = -1.600781059 Simplifying y + 0.75 = -1.600781059 Reorder the terms: 0.75 + y = -1.600781059 Solving 0.75 + y = -1.600781059 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + y = -1.600781059 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + y = -1.600781059 + -0.75 y = -1.600781059 + -0.75 Combine like terms: -1.600781059 + -0.75 = -2.350781059 y = -2.350781059 Simplifying y = -2.350781059

Solution

The solution to the problem is based on the solutions from the subproblems. y = {0.850781059, -2.350781059}

Solution

y = {0.850781059, -2.350781059}

See similar equations:

| 4=7-12t+3 | | x-4/3=8 | | 2ln(5x-9)-7=3 | | 4y^2-34y-32=0 | | 4(x-3)=6x-9 | | x^3-x+4=0 | | 1.32a=f | | log(15)-log(15)2x=1 | | X/-3=-24 | | 2+6*(2x-3)=4-(13x-30) | | 3t-4*(t-2)+2t=1 | | 375x^2-15x-2=0 | | 7/9*x=7/72 | | X^2+6x=4x+8 | | 5c-(c-1)=7(c+4) | | W^2+10w+16=w^2-25 | | 4*(y-1)+3*(y+2)=5*(y-4) | | 4(x-3)+5=2x+7 | | 3*x+2*(x-5)=15 | | 2w^2-w-10=(w+2)(w+2) | | 3p−2=5/4 | | 2*(3*x-1)=3*(x-1) | | x^2+x-20=0 | | 3p+2=54 | | 1+3*(x-1)=4 | | 49+0.5=7 | | 5x+y+9=36 | | 5+3=0.12 | | 26xsquared+26x+5=0 | | a^2+b^2=20 | | 25+60= | | 0.5*(x-4)+0.25*(20-x)=0 |

Equations solver categories