(9-y)(4y+2)=0

Simple and best practice solution for (9-y)(4y+2)=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 (9-y)(4y+2)=0 equation:


Simplifying
(9 + -1y)(4y + 2) = 0

Reorder the terms:
(9 + -1y)(2 + 4y) = 0

Multiply (9 + -1y) * (2 + 4y)
(9(2 + 4y) + -1y * (2 + 4y)) = 0
((2 * 9 + 4y * 9) + -1y * (2 + 4y)) = 0
((18 + 36y) + -1y * (2 + 4y)) = 0
(18 + 36y + (2 * -1y + 4y * -1y)) = 0
(18 + 36y + (-2y + -4y2)) = 0

Combine like terms: 36y + -2y = 34y
(18 + 34y + -4y2) = 0

Solving
18 + 34y + -4y2 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '2'.
2(9 + 17y + -2y2) = 0

Factor a trinomial.
2((9 + -1y)(1 + 2y)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(9 + -1y)' equal to zero and attempt to solve: Simplifying 9 + -1y = 0 Solving 9 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1y = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1y = 0 + -9 -1y = 0 + -9 Combine like terms: 0 + -9 = -9 -1y = -9 Divide each side by '-1'. y = 9 Simplifying y = 9

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 = {9, -0.5}

See similar equations:

| 3(2x+8)=2(x+2) | | f(x+1)=x^2+2x+6 | | (D^2+1)y=x^4+2x+8 | | 8(3m+5)2m=-4 | | 3x-x-5=2(x+4)-9 | | X^5-x^4=0 | | A+4b=180 | | .25x-7=-5 | | f(x+1)=-x^2+2x+6 | | 6-1y+5y+6y= | | -148=-8+10b | | 21a+28a-6=10.2 | | m+2+m+1= | | 2x+4=1x-24 | | 2x+3+4x=33 | | -4+x=-22 | | 6=-21(7-x) | | 2x-9=2(x+8) | | 7(1+5n)+6(6a+5)=32 | | -18q-4-4q=-16 | | -5x+4(5x-10)=-160 | | (D^2+3D-5)y=e^2x+3x^2+4x-1 | | 2x-9=(x+8) | | 6(3k+1)-3(5k-1)=39 | | -1/5(1+4y)=-36/5-39y/5 | | 1-3x+7= | | 8x-17=5x+16 | | -y^2+x^2=45 | | -3[2n+1]+7=-5 | | -5(x+2)=-7x+6 | | -6y+5(4y-2)=2+9(2-y) | | 14x-49=x^2+49 |

Equations solver categories