4y^2+28y-72=0

Simple and best practice solution for 4y^2+28y-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 4y^2+28y-72=0 equation:


Simplifying
4y2 + 28y + -72 = 0

Reorder the terms:
-72 + 28y + 4y2 = 0

Solving
-72 + 28y + 4y2 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '4'.
4(-18 + 7y + y2) = 0

Factor a trinomial.
4((-9 + -1y)(2 + -1y)) = 0

Ignore the factor 4.

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

Solution

y = {-9, 2}

See similar equations:

| s(s-4)(s+9)=0 | | y(y-7)(y+2)=0 | | 2y^2+8y-24=0 | | 16x^2+9y^2=0 | | (5x-1)(6x+1)=0 | | 9a^2+12a-5=0 | | -16x^3-0.2x^2+150x-100000=0 | | -3-6=13-8x | | 13-7x=24-14x | | 6x+7=-35-8x | | 18x^2(36x^6)= | | (x-6)(x-7)=6 | | (x-2)(x-7)=6 | | 18x^2(-36x^6)= | | 3x^2=66x | | 31+x=x+31 | | c^2=49 | | 9+n=39 | | 11(x+8)=88 | | 1n+9=39 | | 9x^2+15x-26=0 | | 5x^2+10x-240=0 | | 1+9=49 | | 12x^2+36x-840=0 | | 4x+8=5x+3 | | 12(2-x)-22x+1= | | 2(b-8)=7b+4 | | -4m-22=6 | | -4m-21=6 | | 4r^2+11r=20 | | 7r^2+13r=24 | | 4x-1=2*x+5 |

Equations solver categories