-9y=2y^2+4

Simple and best practice solution for -9y=2y^2+4 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 -9y=2y^2+4 equation:


Simplifying
-9y = 2y2 + 4

Reorder the terms:
-9y = 4 + 2y2

Solving
-9y = 4 + 2y2

Solving for variable 'y'.

Reorder the terms:
-4 + -9y + -2y2 = 4 + 2y2 + -4 + -2y2

Reorder the terms:
-4 + -9y + -2y2 = 4 + -4 + 2y2 + -2y2

Combine like terms: 4 + -4 = 0
-4 + -9y + -2y2 = 0 + 2y2 + -2y2
-4 + -9y + -2y2 = 2y2 + -2y2

Combine like terms: 2y2 + -2y2 = 0
-4 + -9y + -2y2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(4 + 9y + 2y2) = 0

Factor a trinomial.
-1((4 + y)(1 + 2y)) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(4 + y)' equal to zero and attempt to solve: Simplifying 4 + y = 0 Solving 4 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + y = 0 + -4 Combine like terms: 4 + -4 = 0 0 + y = 0 + -4 y = 0 + -4 Combine like terms: 0 + -4 = -4 y = -4 Simplifying y = -4

Subproblem 2

Set the factor '(1 + 2y)' equal to zero and attempt to solve: Simplifying 1 + 2y = 0 Solving 1 + 2y = 0 Move all terms containing y to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 2y = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2y = 0 + -1 2y = 0 + -1 Combine like terms: 0 + -1 = -1 2y = -1 Divide each side by '2'. y = -0.5 Simplifying y = -0.5

Solution

y = {-4, -0.5}

See similar equations:

| 5(2h+30)=10(h-15) | | 2y=5y^2-7 | | 7m+1=3m+2 | | 0=5(x+7) | | 4(g-15)=2(g+30) | | 4x+1=8x-7 | | -3.3x+9.3=-6.8+12.7x | | y=3y^2-4 | | 7f-20=3f-20 | | 1e/2+3-1e/4=8 | | x^2-16x=64 | | 3(4d-20)=6(2d-10) | | 24x-16=19x | | -3(4y-3)+4(6y+1)=43 | | 14-c/4=9 | | 2.7-1.8y=4.5 | | -(x+1)=5 | | x-4.5=11.7 | | 5y-1.4=6 | | 5(b+10)=2(2b-22) | | 4(p-7)=3 | | 6z+10=34 | | 9y-8=8y-7 | | 2(2k+1)=2(k-3) | | 8a-10-5a=20 | | 6=1-2 | | 4(3-n)=3(n+2) | | 10x+4=2x+20 | | 3-4x=2(x-4) | | 3x+2=2(x-4) | | 10x+6=8x-(-4) | | 9x-14=7x+20 |

Equations solver categories