(7z+8)(9z-2)=

Simple and best practice solution for (7z+8)(9z-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 (7z+8)(9z-2)= equation: 


Simplifying
(7z + 8)(9z + -2) = 0

Reorder the terms:
(8 + 7z)(9z + -2) = 0

Reorder the terms:
(8 + 7z)(-2 + 9z) = 0

Multiply (8 + 7z) * (-2 + 9z)
(8(-2 + 9z) + 7z * (-2 + 9z)) = 0
((-2 * 8 + 9z * 8) + 7z * (-2 + 9z)) = 0
((-16 + 72z) + 7z * (-2 + 9z)) = 0
(-16 + 72z + (-2 * 7z + 9z * 7z)) = 0
(-16 + 72z + (-14z + 63z2)) = 0

Combine like terms: 72z + -14z = 58z
(-16 + 58z + 63z2) = 0

Solving
-16 + 58z + 63z2 = 0

Solving for variable 'z'.

Factor a trinomial.
(-8 + -7z)(2 + -9z) = 0


Subproblem 1
Set the factor '(-8 + -7z)' equal to zero and attempt to solve:

Simplifying
-8 + -7z = 0

Solving
-8 + -7z = 0

Move all terms containing z to the left, all other terms to the right.

Add '8' to each side of the equation.
-8 + 8 + -7z = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -7z = 0 + 8
-7z = 0 + 8

Combine like terms: 0 + 8 = 8
-7z = 8

Divide each side by '-7'.
z = -1.142857143

Simplifying
z = -1.142857143

Subproblem 2
Set the factor '(2 + -9z)' equal to zero and attempt to solve:

Simplifying
2 + -9z = 0

Solving
2 + -9z = 0

Move all terms containing z to the left, all other terms to the right.

Add '-2' to each side of the equation.
2 + -2 + -9z = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -9z = 0 + -2
-9z = 0 + -2

Combine like terms: 0 + -2 = -2
-9z = -2

Divide each side by '-9'.
z = 0.2222222222

Simplifying
z = 0.2222222222
Solution
z = {-1.142857143, 0.2222222222}

See similar equations:

| 2x+22=30-2x | | 1/3x1/9 | | 5(x-4)-2(3-2x)=4(x+2)-3(2-3x) | | 10w=4700 | | sin(100x)=sin(15x) | | 4x+3(4x-16)=112 | | 5-((3x+1)-2)=3x | | 0.3(6+x)=0.3(8-x) | | 3x+4(7x-15)=126 | | 2x-7=5-7x | | -2.1(1.7x+2.4)=0.2(x+0.41) | | x(x-4)+2=(x-3)(x+2)+5 | | 3/5*x=1*1/5 | | 6x+6=3x+1+x+5 | | 10f-10=0 | | 10f=0 | | 25+20x+5x^2=0 | | 2x-5/3-3x-1/4=2/3 | | 6/7:4,9= | | 2log(x)=log(-6+5x) | | 2y=-3x+13 | | 10(f-1)=0 | | p^2+5p+20=14 | | 3-(x+5)=3x-8 | | a+b=91 | | a=(20+2x)(15+2x) | | x+7x=640 | | 15.5=4x+2y | | a*5+3=13 | | t*2/5=3/25 | | 5x+2=-2(x-3) | | T•2/5=3/25 |

Equations solver categories