5z^2+90z+405=0

Simple and best practice solution for 5z^2+90z+405=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 5z^2+90z+405=0 equation:


Simplifying
5z2 + 90z + 405 = 0

Reorder the terms:
405 + 90z + 5z2 = 0

Solving
405 + 90z + 5z2 = 0

Solving for variable 'z'.

Factor out the Greatest Common Factor (GCF), '5'.
5(81 + 18z + z2) = 0

Factor a trinomial.
5((9 + z)(9 + z)) = 0

Ignore the factor 5.

Subproblem 1

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

Subproblem 2

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

Solution

z = {-9, -9}

See similar equations:

| 4y+3y=6y+5 | | y-180=85 | | 180+85=y | | y=8.1+20 | | 30*15.60=23N+8 | | 30C=23N+8 | | 4(x+3)-3x+4=x-6 | | 3(x+2)-2x+7=x+7 | | 3(x+2)-2x=x+7 | | 3x+7/2+1=(8x+1/3)-4 | | 6w+(9/8)=(w+6/8)-6 | | -4x=8x+16 | | 6ln(x+6)-9ln(x)= | | 6w+9/8=w+6/8-6 | | 6ln(x+6)-9lnx= | | 6x+9/8=w+6/8-6 | | (4x-1)+3(2x+6)=4x-1 | | 9x-4(x-1)=-4+7x+10 | | 3(x+1)+3x=x+6 | | 3x-14-5x+4=7-8x-9+2x | | 5+1s=6 | | 20+4m=20 | | 5x+24(x-3)=218 | | 20+4m=52 | | 213=-16t^2+128t | | 1/7s=4 | | 5/6t-6=9 | | 6.3+.05x=16.3 | | 15-4x=-13 | | 9x^2+2=731 | | -x-2=-1 | | y+31/4=8.5 |

Equations solver categories