(5z^2+3z-5)-(6z^2-7z-9)=

Simple and best practice solution for (5z^2+3z-5)-(6z^2-7z-9)= 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+3z-5)-(6z^2-7z-9)= equation:


Simplifying
(5z2 + 3z + -5) + -1(6z2 + -7z + -9) = 0

Reorder the terms:
(-5 + 3z + 5z2) + -1(6z2 + -7z + -9) = 0

Remove parenthesis around (-5 + 3z + 5z2)
-5 + 3z + 5z2 + -1(6z2 + -7z + -9) = 0

Reorder the terms:
-5 + 3z + 5z2 + -1(-9 + -7z + 6z2) = 0
-5 + 3z + 5z2 + (-9 * -1 + -7z * -1 + 6z2 * -1) = 0
-5 + 3z + 5z2 + (9 + 7z + -6z2) = 0

Reorder the terms:
-5 + 9 + 3z + 7z + 5z2 + -6z2 = 0

Combine like terms: -5 + 9 = 4
4 + 3z + 7z + 5z2 + -6z2 = 0

Combine like terms: 3z + 7z = 10z
4 + 10z + 5z2 + -6z2 = 0

Combine like terms: 5z2 + -6z2 = -1z2
4 + 10z + -1z2 = 0

Solving
4 + 10z + -1z2 = 0

Solving for variable 'z'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-4 + -10z + z2 = 0

Move the constant term to the right:

Add '4' to each side of the equation.
-4 + -10z + 4 + z2 = 0 + 4

Reorder the terms:
-4 + 4 + -10z + z2 = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -10z + z2 = 0 + 4
-10z + z2 = 0 + 4

Combine like terms: 0 + 4 = 4
-10z + z2 = 4

The z term is -10z.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10z + 25 + z2 = 4 + 25

Reorder the terms:
25 + -10z + z2 = 4 + 25

Combine like terms: 4 + 25 = 29
25 + -10z + z2 = 29

Factor a perfect square on the left side:
(z + -5)(z + -5) = 29

Calculate the square root of the right side: 5.385164807

Break this problem into two subproblems by setting 
(z + -5) equal to 5.385164807 and -5.385164807.

Subproblem 1

z + -5 = 5.385164807 Simplifying z + -5 = 5.385164807 Reorder the terms: -5 + z = 5.385164807 Solving -5 + z = 5.385164807 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + z = 5.385164807 + 5 Combine like terms: -5 + 5 = 0 0 + z = 5.385164807 + 5 z = 5.385164807 + 5 Combine like terms: 5.385164807 + 5 = 10.385164807 z = 10.385164807 Simplifying z = 10.385164807

Subproblem 2

z + -5 = -5.385164807 Simplifying z + -5 = -5.385164807 Reorder the terms: -5 + z = -5.385164807 Solving -5 + z = -5.385164807 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + z = -5.385164807 + 5 Combine like terms: -5 + 5 = 0 0 + z = -5.385164807 + 5 z = -5.385164807 + 5 Combine like terms: -5.385164807 + 5 = -0.385164807 z = -0.385164807 Simplifying z = -0.385164807

Solution

The solution to the problem is based on the solutions from the subproblems. z = {10.385164807, -0.385164807}

See similar equations:

| ((x^2)-1)-2=x+1 | | 5n+7=13 | | 3/11*3/11= | | 8x-19=31-2y | | 30+1.95=7.95 | | 3.3c+159(6.289308176-.020754717c)=1000 | | X-3=2x-8 | | -7z+4-z=7 | | 3.3c+159b=1000 | | X-3=8+2x | | x*0.22=35 | | 12x-36=8x-12-6x+6 | | 6y^2+18y+12=0 | | 7/4= | | ax+ry=t | | 3m+5n+9m+8n= | | 147w^5-3w^3=0 | | (2x-5)+1=7x+10 | | 6x=6x-8 | | (2x-57x+10)+1= | | 3*ln(e^2x)=12 | | 6(3x+2)=4(2x+5) | | 6x^2-x+7=0 | | 7*7*7*7*7*7*7*7*7= | | 8x+3x-6x+11=6x+17-4x | | x^2+y^2+18x+32y+333=0 | | 200-8y=2y+50 | | 4(2x+1)=5x+16 | | 30=6x+2(-x-9) | | 5x+78=67 | | x+(x*2)=81 | | 8x+8x+7=-73 |

Equations solver categories