First of all, I can see a common factor of 3, divide each term by 3.
The result factors
Hint: one of the factors is x-1
Solve the quadratic equation.
3x^2 - 15x + 18 = 0
3 answers
3x^2-15x+18=0
-18
3x^2-15x=-18
square root
3x-15x=4.2426406871192851464050661726291
divide by 3
x-15x=1.4142165323730950488016887242097
divide by -15
x+x=-0.094280904158206336596779248280647
-x
x=-0.094280904158206336596779248280647x
-18
3x^2-15x=-18
square root
3x-15x=4.2426406871192851464050661726291
divide by 3
x-15x=1.4142165323730950488016887242097
divide by -15
x+x=-0.094280904158206336596779248280647
-x
x=-0.094280904158206336596779248280647x
I have no clue what Zach is doing.
As I said above
3x^2 - 15x + 18 = 0
x^2 - 5x + 6 = 0
(x-1)(x-6) = 0
x = 1 or x = 6
As I said above
3x^2 - 15x + 18 = 0
x^2 - 5x + 6 = 0
(x-1)(x-6) = 0
x = 1 or x = 6
5 answers