2y^2-7y-72=0

Simple and best practice solution for 2y^2-7y-72=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 2y^2-7y-72=0 equation:


Simplifying
2y2 + -7y + -72 = 0

Reorder the terms:
-72 + -7y + 2y2 = 0

Solving
-72 + -7y + 2y2 = 0

Solving for variable 'y'.

Factor a trinomial.
(-9 + -2y)(8 + -1y) = 0

Subproblem 1

Set the factor '(-9 + -2y)' equal to zero and attempt to solve: Simplifying -9 + -2y = 0 Solving -9 + -2y = 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 + -2y = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -2y = 0 + 9 -2y = 0 + 9 Combine like terms: 0 + 9 = 9 -2y = 9 Divide each side by '-2'. y = -4.5 Simplifying y = -4.5

Subproblem 2

Set the factor '(8 + -1y)' equal to zero and attempt to solve: Simplifying 8 + -1y = 0 Solving 8 + -1y = 0 Move all terms containing y to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1y = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1y = 0 + -8 -1y = 0 + -8 Combine like terms: 0 + -8 = -8 -1y = -8 Divide each side by '-1'. y = 8 Simplifying y = 8

Solution

y = {-4.5, 8}

See similar equations:

| F(x)=2x^2-4x-11 | | 9x^2+9y^2+18x+6y+1=0 | | 3a^2+16ab+5b^2= | | 81-25z^2=0 | | -8z-40=1-7z | | y-20=7-2y | | (2p+5)(-4)=p^2+20 | | x(x+5)(x+10)=168 | | 2-13.6+6.9= | | 9x-4=6x-52 | | 13x(-4x+2)=.5x+6 | | 6(x-4)=84/7 | | 6d-4d= | | 2x^2+15x-7.9=0 | | 7x1/9 | | 3y^2+29y+40=0 | | -9(5+7z)=21 | | og(x)+log(x+5)=log(6x+12) | | (5x+2)(3+w)=0 | | 4u^4v^5/20v^5x^6-12v^2 | | -b+5(-4b-8)=-166 | | 5/8y-1/5=1/2 | | (3x+2)+12=4 | | 6+6(x-2)=8-8(x-4) | | 12-2x=2x-12 | | -16=4(v-8)-6v | | Ln(x/0.13) | | -19-(-28)=x/6 | | -19-(-28)==/6 | | x/3.6=75/100 | | 2(3z-2)-2(3-2z)=2 | | 3n+5(-8-5n)=92 |

Equations solver categories