18z^2-8z=2

Simple and best practice solution for 18z^2-8z=2 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 18z^2-8z=2 equation:


Simplifying
18z2 + -8z = 2

Reorder the terms:
-8z + 18z2 = 2

Solving
-8z + 18z2 = 2

Solving for variable 'z'.

Reorder the terms:
-2 + -8z + 18z2 = 2 + -2

Combine like terms: 2 + -2 = 0
-2 + -8z + 18z2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-1 + -4z + 9z2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-1 + -4z + 9z2)' equal to zero and attempt to solve: Simplifying -1 + -4z + 9z2 = 0 Solving -1 + -4z + 9z2 = 0 Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. -0.1111111111 + -0.4444444444z + z2 = 0 Move the constant term to the right: Add '0.1111111111' to each side of the equation. -0.1111111111 + -0.4444444444z + 0.1111111111 + z2 = 0 + 0.1111111111 Reorder the terms: -0.1111111111 + 0.1111111111 + -0.4444444444z + z2 = 0 + 0.1111111111 Combine like terms: -0.1111111111 + 0.1111111111 = 0.0000000000 0.0000000000 + -0.4444444444z + z2 = 0 + 0.1111111111 -0.4444444444z + z2 = 0 + 0.1111111111 Combine like terms: 0 + 0.1111111111 = 0.1111111111 -0.4444444444z + z2 = 0.1111111111 The z term is -0.4444444444z. Take half its coefficient (-0.2222222222). Square it (0.04938271604) and add it to both sides. Add '0.04938271604' to each side of the equation. -0.4444444444z + 0.04938271604 + z2 = 0.1111111111 + 0.04938271604 Reorder the terms: 0.04938271604 + -0.4444444444z + z2 = 0.1111111111 + 0.04938271604 Combine like terms: 0.1111111111 + 0.04938271604 = 0.16049382714 0.04938271604 + -0.4444444444z + z2 = 0.16049382714 Factor a perfect square on the left side: (z + -0.2222222222)(z + -0.2222222222) = 0.16049382714 Calculate the square root of the right side: 0.400616808 Break this problem into two subproblems by setting (z + -0.2222222222) equal to 0.400616808 and -0.400616808.

Subproblem 1

z + -0.2222222222 = 0.400616808 Simplifying z + -0.2222222222 = 0.400616808 Reorder the terms: -0.2222222222 + z = 0.400616808 Solving -0.2222222222 + z = 0.400616808 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '0.2222222222' to each side of the equation. -0.2222222222 + 0.2222222222 + z = 0.400616808 + 0.2222222222 Combine like terms: -0.2222222222 + 0.2222222222 = 0.0000000000 0.0000000000 + z = 0.400616808 + 0.2222222222 z = 0.400616808 + 0.2222222222 Combine like terms: 0.400616808 + 0.2222222222 = 0.6228390302 z = 0.6228390302 Simplifying z = 0.6228390302

Subproblem 2

z + -0.2222222222 = -0.400616808 Simplifying z + -0.2222222222 = -0.400616808 Reorder the terms: -0.2222222222 + z = -0.400616808 Solving -0.2222222222 + z = -0.400616808 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '0.2222222222' to each side of the equation. -0.2222222222 + 0.2222222222 + z = -0.400616808 + 0.2222222222 Combine like terms: -0.2222222222 + 0.2222222222 = 0.0000000000 0.0000000000 + z = -0.400616808 + 0.2222222222 z = -0.400616808 + 0.2222222222 Combine like terms: -0.400616808 + 0.2222222222 = -0.1783945858 z = -0.1783945858 Simplifying z = -0.1783945858

Solution

The solution to the problem is based on the solutions from the subproblems. z = {0.6228390302, -0.1783945858}

Solution

z = {0.6228390302, -0.1783945858}

See similar equations:

| 2/3x3^2-5 | | 2/3x9-5 | | 4s+9=12s | | n-3=5n-15 | | A^3/a^2 | | 122-(7x+4)=7(x+4)+x | | [2x+1][3x+1][5x+1][30x+1]=0 | | -5=8/v-4 | | x/(x-1/2) | | In(inx)=1 | | 5x/6y^5*9y^5/20x^3 | | 4x+5=-8+2x+23 | | zx+zxy^2-3=5x+zy | | -3/15 | | xz+xzy^2-3=5z+xy | | u-15+ 291= 281 | | 2(z-3i)+2iz=z(1+i) | | 16+8s=96 | | y-4(3x/5y) | | 2[27+(x+y)]=2[(y+27)+x] | | 26+2s=96 | | 4+4q=12 | | 1/16-4×^2/49 | | 2xy-2xz+2vy-2vz= | | 5x+3-6x+1+2x= | | -×/2-3=5 | | 5r/-r | | -7(x-2)-4=10 | | X+.04=325 | | (x+y)(2)=2x+2y | | abs(x+1)+abs(x-1)=2x | | (a-b)+c=a+(c-b) |

Equations solver categories