(4y-5)(y+9)=0

Simple and best practice solution for (4y-5)(y+9)=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-5)(y+9)=0 equation:


Simplifying
(4y + -5)(y + 9) = 0

Reorder the terms:
(-5 + 4y)(y + 9) = 0

Reorder the terms:
(-5 + 4y)(9 + y) = 0

Multiply (-5 + 4y) * (9 + y)
(-5(9 + y) + 4y * (9 + y)) = 0
((9 * -5 + y * -5) + 4y * (9 + y)) = 0
((-45 + -5y) + 4y * (9 + y)) = 0
(-45 + -5y + (9 * 4y + y * 4y)) = 0
(-45 + -5y + (36y + 4y2)) = 0

Combine like terms: -5y + 36y = 31y
(-45 + 31y + 4y2) = 0

Solving
-45 + 31y + 4y2 = 0

Solving for variable 'y'.

Factor a trinomial.
(-9 + -1y)(5 + -4y) = 0

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 '(5 + -4y)' equal to zero and attempt to solve: Simplifying 5 + -4y = 0 Solving 5 + -4y = 0 Move all terms containing y to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -4y = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -4y = 0 + -5 -4y = 0 + -5 Combine like terms: 0 + -5 = -5 -4y = -5 Divide each side by '-4'. y = 1.25 Simplifying y = 1.25

Solution

y = {-9, 1.25}

See similar equations:

| 650(25/4) | | 40/12=23/x | | 0.08(y-2)+0.02y=0.14y-0.01(10) | | 650*12/4 | | y/3+2x=7x | | -8=-6+3y | | 3y+7-5y=13 | | 40/16=27/x | | -25x^3-4x= | | A+B+B+B+80+90-100=0 | | -6.6=2.3z-(-2.7z+0.6) | | (20/49)(-7/10) | | x+(4*x/100)=1200 | | X+(X-2)*20=4 | | 35w-4w=-1-4/5 | | 1111+222.02= | | -4+r=r-2 | | x+(x*4/100)=1200 | | 5y-x=15 | | 6/x=2/28 | | 6/x=3/24 | | (-7z+9)+6=5 | | x+29/-9=-6 | | 3/x=6/24 | | h+r=p | | 6/x=24/3 | | 4/5y-8=-4 | | x/25=48/4 | | 9m+1=6m-8 | | (6y-7)/2+8/4=(12y+9)/4 | | 1/49=7x | | 12/4=n/6 |

Equations solver categories