2z^2+z-15=

Simple and best practice solution for 2z^2+z-15= 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 2z^2+z-15= equation:


Simplifying
2z2 + z + -15 = 0

Reorder the terms:
-15 + z + 2z2 = 0

Solving
-15 + z + 2z2 = 0

Solving for variable 'z'.

Factor a trinomial.
(-3 + -1z)(5 + -2z) = 0

Subproblem 1

Set the factor '(-3 + -1z)' equal to zero and attempt to solve: Simplifying -3 + -1z = 0 Solving -3 + -1z = 0 Move all terms containing z to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -1z = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1z = 0 + 3 -1z = 0 + 3 Combine like terms: 0 + 3 = 3 -1z = 3 Divide each side by '-1'. z = -3 Simplifying z = -3

Subproblem 2

Set the factor '(5 + -2z)' equal to zero and attempt to solve: Simplifying 5 + -2z = 0 Solving 5 + -2z = 0 Move all terms containing z to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -2z = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2z = 0 + -5 -2z = 0 + -5 Combine like terms: 0 + -5 = -5 -2z = -5 Divide each side by '-2'. z = 2.5 Simplifying z = 2.5

Solution

z = {-3, 2.5}

See similar equations:

| a=qp/5 | | (6z^2-5z-2)(3z^3-2z-4)=0 | | 6(3+x)=42 | | 25x+5+19x-1=180 | | 8(u-6)+8u=16 | | X^2-(x^2+8x+4)=10 | | X+15x=6 | | 4.0=x/(1.0)^2*(1.0-x) | | X^2-(x^2+4x+4)=10 | | 5z^2+11z-12= | | 0.15(x+2000)=7350 | | 5/6x^-1 | | 2(2x+7)=2(x+1) | | 5x-4+3x=7x+x+14 | | -8.4=0.4x-9.6 | | X^2-(x^2+4)=10 | | -8+-g=-16 | | 3y/5-5=-y | | 2(x+4)+2(x)=320 | | 14=-1+25x | | 2/3×8 | | (9s+7)(2s-5)=0 | | 0.75x+3=-3 | | 80a+24b= | | (b-25)(b-64)=0 | | (2x)+(-x)+2=3(-x)+10 | | 2x*.05=x | | 8+2lnx=12 | | 3(w+7)=-5w+37 | | 4.4-.6ln(x)=0 | | -1=-0.5x+9.5 | | 3(f+1)=-4(-f+2) |

Equations solver categories